新闻山东KAPSTO GPN 270 R 6040 4厂家报价

传感器口径的选择要点选择传感器的口径与连接的工艺管道口径相同其优点是安装方便（不需异径管）；其前提是管内流体的流速须在.3m/s1m/s范围内；其适用状态为工程前期使用且管内流体流速处于较低状态。选择传感器的口径与连接的工艺管道口径不相同其适用状态：流速偏低、流量稳定：降低性价比：衬里材料的选择要点根据本企业被测介质的腐蚀性、磨损性及温度，由订购者选定，可参阅各厂家提供的衬里材料性能及适用范围表。
SCHNEIDER AB1R5  
UNIVER M1000160130  
SCHNEIDER ATV12H075M2  
OMRON YK-LIGHTING_SP  
SCHNEIDER K1F503U  
Gefran-2019 F072413 GTF-150-480-0-0-1-0 2-B-S2 
BANNER SMA91EQDH
SCHNEIDER ZBY02499  
AECO CLC000056 SC-A300 24Vdc 
Fronius 42.0405.0473
LEUZE 50131962 CML720i-R20-1910.A/PN-M12 
CASAPPA 03593055            MOTOR PLM30.51R0-83E3-LGF/GF-N                                                                   
SCHNEIDER LC1D256FD  
Eaton Moeller 190992 DILAT-12(230V50HZ/240V60HZ) 
MD MICRODETECTORS MDI63A 2801   
EA ZD311564-EE620852  
SCHNEIDER BRS3ADW851ACB  
MSC 401035-00 05-2008 63VP-P
OMRON E3T-FT22 2M  
WIKA 9351154 压力传感器 
Turck Nr.6602011 RSM57-TR2
SCHNEIDER XY2CD111H29  
CASAPPA 03712428             HDP30.43S*- * *-L */MC- *G1-N-P                                                             
BARKSDALE 425-T4-07-Z15-239236 
EXTOL PJ-I-11211
SCHNEIDER ZB5AW313C1  
SCHNEIDER XS2L2SANAL5  
RIEGLER MS251LM35  
SCHNEIDER RM1XA3151  
Eaton Moeller 125698 SVX060A2-4A1N1 
Turck BL20-S6T-SBBSBB Nr:6827052
SCHNEIDER PKF32W425  
stromag AG 29-HGE-590-FV70-A1L凸轮限位开关 
RIEGLER 15.DMI.25070  
schmalz 10.01.06.01943 FG 32 PVC-50 真空吸盘 
UNIVER KL2001250320M  
RIEGLER 3040.035  
BURKERT 5281 A 40.0 G1 1/2 PN0.2 16BAR N:00134333  
RIEGLER 243.50-N  
Knick analytics CA/MS-005XAA 电缆 
BURKERT 179938  
SCHNEIDER BRS39BWS0648  
Turck WAK3-2/P00/S105,NO:8017085
faulhaber电机2233U007G9   
NORELEM NLM 06013-06  
LEUZE 50131912 CML720i-R05-960.A/PN-M12 
OMRON D4NL-4EDA-B4  
Honeywell 2CPSA1A1
Eaton Moeller 116561 EASY-BOX-822-DC-USB 
原装丹尼逊DENISON T6CCW 017 003 2R01 C100
Beck GmbH 930.80.222511
SIERRA 640S-FM-L28-M2（20）-M8（20）-E2-P2-V4-DD-99  
Turck FLDP-IM8-0001 Nr.6825320
CASAPPA 03679098             HDP30.43S0-33S3-LMD/MC-N                                                                     
SCHNEIDER CBL019  
BANNER LS2E30-300Q8
G.R.A.S. - 42AB 1 kHz, 114 Db
SCHNEIDER EVB1A22P4KI  
RTA驱动器103-H7126-1740   
BANNER QS18APWDXL
STANZANI Mini air grinder Art. C7501100  
SCHNEIDER KTA3200ER31  
Beyer & Otto GmbH    HN    238V    400W
UNIVER HB401038  
BURKERT 电磁阀368660   
SCHNEIDER ACW22M129012  
LEUZE 50110667 ROD4-38 
SCHNEIDER GS2F3  
UNIVER S1011501250  
UNIVER W1000120025  
进口AC-9500电磁阀UNIVER   
BLAU 04035-00-011  
MD MICRODETECTORS MDI63G 1437   
HBM T101  
BELIMO   NV24MFT50
Eaton Moeller 279004 FAZ-K1/3N 
SCHNEIDER MGU50.261.18Z  
GHISALBA GH15 24V
SCHNEIDER ZBYD06364  
小强工控 CARLO GAVAZZI IA12ESN04UCM1 
BALLUFF BOD63M-LB04-S115
SCHNEIDER LC1D096BLS207  
SCHNEIDER LV848345  
OMRON NS7-KBA04  
RUD VWBG 13(16)t-M48
Gefran-2019 F074118 TPFADA-N-G-V-B01M-H-V 2130X000X00 
SCHNEIDER NSYAELYM12VD  
RIEGLER 247.11  
MD MICRODETECTORS MDI38F 656   
Gefran-2019 F040258 PC-67-0400 0000X000X00 
SCHNEIDER SDN3190223  
lechler 546.540.27.07.00.0
Di-soric DCC 08 M 04 PSK-TSL,Nr:202309
BANNER TL50BLZGRALS4QP
OMRON 61F-GP-N-TDL 110AC  
SCHNEIDER ZB5AW343SC0  
Gefran-2019 F007014 AR6-B-2-B-C-C-J-B-2 000X000X00200AX 
INDU-SOL 114090100
OMRON E3FA-TN21  
BANNER SMB915LV
Eaton Moeller 177155 XTSZCSV4-H350W600 
Eaton Moeller 186296 XTSZDSQV3-H325W1000-SOND-RAL* 
LEUZE 544004 MLC500T14-900-IP 
SCHNEIDER ABE7H20E100  
Eaton Moeller 170M6421  
Norgen 100230806
EMG EVK2-CP800/71/L/R
LIKA编码器AS5812/PB-12 PROFIBUS D12MM    
IPF AV000018   
FLEXA TYP LKI-PG36 NR.5020.710.036 塑料管 
GEMU  480 65W332A12LF05 D11
SCHNEIDER LC1K1601R7  
DOLD安全继电器44569  MK9053/012 AC20-200MA AC230V 5S   
Eaton Moeller BK/GMT-3A BUSS INDICATING FUSE BK/GMT-3A 
CASAPPA 03772598             DIVIDER HDD30.22-MB+22-MB+C3030-MD+22-MB+22-MB-N                                                 
UNIVER KL2000630570M  
UNIVER RM4000320600  
BECKHOFF C9900-H750  
Gefran-2019 F033251 TC7M-A-1-K-0-F-G 000A000X08000XA 
SCHNEIDER MGU6.002.874D  
NORELEM BZ NLM02020-516  
Gefran-2019 F051689 TCM-CE-1-J-5-D-0-S-A 060X000X00015XX 
Gefran-2019 F064792 TCM-GF-1-J-0-D-0-T-M 000X000X00005XX 
HYDAC 2600 R 005 BN4HC
ADIMPEX FT050460-R cable TEL.28AWG FL.6C/N/IT R3 05 pack mt.305
小强工控 CARLO GAVAZZI PS21L-MT02LS-T00 
SELET传感器B60EG188NO   
BANNER PBCT2.52TMPVC
AMK DHSS10-05-400F
UNIVER K2010400035  
Gefran-2019 F008469 M30-6-M-B01M-4-4-0 2130X000F00 
SELET传感器CM40200   
KAWAKI KY-MA-32A NORMAL FLOW23L/min SETTING FLOW 15L/min
MD MICRODETECTORS MDI38F 1040   
UNIVER AF-2601D  
Gefran-2019 F025883 TC2-A-2-K-C-C-Q 000X000X01530XA 
FINDER继电器601280240020   
新闻山东KAPSTO GPN 270 R 6040 4厂家报价

众所周知，甲醛对我们身体的危害是非常大的，在日常生活中对于甲醛的检测也是非常的重视，甲醛是一种有强烈刺激性气味的气体，主要用于塑料工业、合成纤维、皮革工业、染料等方面。特别是刚装修完的新房，即使使用的是环保材料，仍不可避免存在甲醛污染。为了帮您排忧解难，西安鼎润环保为您解决如何快速检测甲醛？目前市场上的甲醛快速检测产品大同小异，大都采用半定量检测法，通过卡对比，来测出室内甲醛的相对含量。原理是被测样品中甲醛与显色剂反应会生成蓝绿色化合物，而且会对可见光有选择性地吸收，人们就可以直接在比色卡上读出甲醛的含量。

NWL 12816A 64uF 4300Vpk
SCHNEIDER ZBY2609  
SCHNEIDER XPSATE5110P
 Stoerk ST30-31.03 PTC 12-24ACDC K1K2 温度变送器   
EA VK311008-NE092100  
CASAPPA 019986WV             MOTOR PLM20.9B0-49S1-LOC/OC-N-EL-C-V8(CRS)                                                       
OMRON Y92B-S10  
OMRON A22NN-RPM-NRA-G122-NN  
UNIVER HZ9P500614  
DOLD安全继电器31597  AD 866.17 DC24V   
CASAPPA 03578454             MOTOR KM30.43L0-83E3-LED/ED-N                                                                     
Eaton Moeller 12FDLSJ20 12KV 20Amp 2" Full Range Fuse 
BANNER TR100-4
SCHNEIDER MTN2355-0414  
LIKA编码器IT65-H-500ZNF4CRL5 500PPR-RAD-L5MT   
BECKHOFF EL1862  
SCHNEIDER GV3G264  
E+H PMC71-ABC2C2RHAAU 量程0-10KPA ABS
小强工控 CARLO GAVAZZI PS43L-MT11L3-M00 
BUEHLER  NS10/25AM-K-SK166/1400
HYDAC ENS 3118-5-0410-000-K(DC24V)
DG2D3122065 EK311626 MEMG2S331643015 
GUTEKUNST弹簧D-284   
SCHNEIDER BSH0553T11A2A  
UNIVER RP2000500050  
LAND M6-0/300CV-S4P-S4AJ-S4C-S4W(CA)+S4M+FS6
SCHMERSAL  AZ 15/16-B1-1
Eaton Moeller 201716 P3-63/ST/SVB-SW 
SCHNEIDER TBUP314EA65AH00  
MD MICRODETECTORS MDI58F 2386   
Gefran-2019 F053417 TCI-A-1-K-0-F-D 000X000X00280XX 
WILCOXON PC420VR-05
SCHAEVITZ HT-SGLBDM242300K0S 磁致伸缩传感器 
Eaton Moeller 120842 dRCM-63/4/003-R+ 
Densen D100LAH-4G2.2KW380V5.2A50HZF IP55 connection Y
ILME ILCDFJD 1.5  
EMG   SV1-10/48/315/1
SELET传感器B87EG3015NO   
schunk 0362020 SRU-plus 35-W-180-3  
HBM 1-KMR/40KN 负荷传感器 
SCANCON SCH86BEX-1024-SA-MS-06-00-66-01-SH08-A
em-technik 1A010031-DN4/6-G1/8"-PVDF
SIRAI D351V03G-24 V DC
Gefran-2019 F066379 MK4-P-W-1000-2-A 0000XXXXX00X0XX 
FINDER继电器405191100003   
SCHNEIDER GS2G3  
Masoneilan  TYPE 4X SVI 2-22111111   150PSI/7BAR
SCHNEIDER A9L16573  
Crossbow CXTA01-10V
RIEGLER 10.DMD.63350  
CASAPPA 03771038             DIVIDER HDD30.73-MD+C3030-ME+51-MC-N                                                             
SELET传感器B02EG82NO   
Knick isolation P42000D3
MD MICRODETECTORS LS2ER/0A-050F   
JUNG A 1520-O WW LNW SCHUKO Steckdose integrierter erh?hter Berührungsschutz Alpinwei?   
OMRON H3DT-HCL 100-120VAC  
SCHNEIDER ZB5AJ2C1  
DEUBLIN 1109-840-835
STANZANI MacPherson Art. 127 ? 
SELET传感器CS4N200PUR   
VICKERS  DG4S4016CH60
OMRON A22NK-3BM-01CA-G211  
英国ONDRIVES变速箱和减速器E40-1AR-14   
Eaton Moeller 259050 NWS-FR/VT2/81020/M 
LIQUIDYN JA3 13 304
RIEGLER 176.018-8  
OEMER  HQL 80X CD 3.8KW
schunk MMS22-SPM8301032  
STAHL 8008/2  see DOC NO.992 611 0
FINDER继电器202280240000   
BURKERT 12-36V 25mA D01: 5-36V 100mA A01:4-20mA S/N:1229100 418762
MD MICRODETECTORS MDI38G 2203   
RIEGLER E 14811/24 M  
SSP PUMPS N1-000L-H07 
Micro-Epsilon LD1700-750
Eaton Moeller 153397 NZMH2-4-AF110-BT-NA 
BANNER RPA-C3-20
ROEMHELD旋转式耦合连接器9284036 
OMRON NYB1E-413K6  
Gefran-2019 F023482 M30-6-M-P10M-4-4-0 2130X000X00 
LEUZE 50134985 MTKS 20x30.1 
CASAPPA 76503560           HDP35.50-S5-LGH/GG/35.50-LGH/GG/30.27-LGF/GE S                                               
DOLD安全继电器60460  IL9163.12 AC50/60HZ 400V   
Sommer COR0350150  
SCHNEIDER DZ5CE005  
WISTRO FLAI BG132 C35 IL-2-2  
SCHNEIDER XE3SP2141  
SCHNEIDER SDN5800141  
Eaton Moeller 139777 OPTTHR4 
SCHNEIDER BMP1402C3NA2A  
小强工控 CARLO GAVAZZI EM2TMZ3CNAD 
PILZ Nr.541061 自动控制器 
OMRON S82Y-FSC035DIN-S  
Eaton Moeller 138648 SPX040A1-5A4B1 
SCHNEIDER ZBY02612  
MD MICRODETECTORS MDI63G 2144   
VIVOIL齿轮泵X2P4132CSRA   
RELECO C7-W10/DC12V  R              .   
hastings 5455-15  
SCHNEIDER XS512B1MBU20  
SCHNEIDER ATV312H075N4  
MD MICRODETECTORS MDI63G 1620   
BURKERT 00444699 SN:8182  
Eaton Moeller 1022521  
ors bearing 620850C3
Gefran-2019 F021569 TC7M-B-2-K-0-F-I-B-1 000B000X00860XA 
Leine Linde  Part no.620908-01  Ser.no.54925523 10-30vdc
RIEGLER 567-6  
BANNER SM312LPMHS W/30
Gefran-2019 F051616 I71-S-6-M-B35D-1-4-D-P 2130X000X00 
Gefran-2019 F049918 MK4-S-B-1000-B-3 0000XX14X00X0XX 
Eaton Moeller 77251 TM-6-8282/E 
SCHNEIDER NHJF36020TW  
Gefran-2019 F305407 GFW-1PH-100-480-1-1-3-R-1-2-E1 
SCHNEIDER PKY32W415  
SCHNEIDER A9C22722  
CASAPPA 80041123             KP40.87-06S8-LMF/ME-CSL/30.34-LMC/MB-CSC S                                                   
Pall HS76529 
GUDEL 170946
ENDEVCO 6235M1 13.5m
RITTAL VC 1934.200
SCHNEIDER ZB6CGF  
Gefran-2019 F057069 MSPE2-6-M-P10M-1-4-D 2130X000X00 
F.H. Papenmeier GmbH & Co. KG DIN 7080(1775.152.00) 250X25mm 卤钨灯 
Trasfotec S.r.l. 400+-20//220V 2500VA Code：ET6555658 变压器1 
Eaton Moeller 167393 ASBELL230 
Phoenix USLKG 16N
EPCOS B88069X2500S102
BANNER TL50GRYALSCQP
casappa KM20.25B0-31E2-PGE/G
Gefran-2019 F069308 MK4-P-W-0700-2-A 0000XXXXX00X0XX 
CASAPPA 03591412             PLP30.43D0-A8E3-LBM/BL-N                                                                     
SCHNEIDER LC1K16004Q7  
FINDER继电器889202400000   
小强工控 CARLO GAVAZZI PS21L-PT11LW-T00 
MEGATRON XKZA15-4K7-TC   
MD MICRODETECTORS MDI63A 2250   
Eaton Moeller 229985 DILM95-XSP(48V50HZ) 
ILME ILCIO 24.36  
RTK DN80-S/N:15112305/050 DN：125 TYPE:MV5323
NILOS RING 6004 AV
Mahle 13006 RN MIC 10
BANNER TBT23S
CASAPPA 03712370             HDP30.27S*- * *-L */MB- *M8-N-P                                                             
新闻山东KAPSTO GPN 270 R 6040 4厂家报价

只要控制好，一般比如说MOBIL，SHELL等，都可以用上5年，但前提是现在假油比较多。保养时拆卸液压油箱加油盖、滤清器盖、检测孔、液压油管等部位，液压系统油道暴露时要避开扬尘，拆卸部位要先清洁后才能打开。如拆卸液压油箱加油盖时，先除去油箱盖四周的泥土，拧松油箱盖后清除残留在接合部位的杂物(不能用水冲洗以免水渗入油箱)，确认清洁后才能打开油箱盖。如需使用擦试材料和铁锤时，应选择不掉纤维杂质的擦拭材料和击打面附着橡胶的专用铁锤。

DOLD安全继电器46020  BA9040.12/001 3AC50/60HZ 600V   
HBM 1-WGX002  
BANNER QS30LLP-18113
Eaton Moeller 121665  
SCHNEIDER MTN400419  
LEUZE 50135767 LCS-1M18M-N15PNO-M12 
SCHNEIDER LC1D50AW7  
MD MICRODETECTORS MDI63F 1912   
SCHNEIDER MTN2350-4019  
UNIVER K2010400220M  
CASAPPA 03573499             INTERMED. SECT. KP30.27S*- * *-LMC/MB-55N4-N-I CSL                                                 
Gefran-2019 F069338 GITFOS045000HA30 L000X05 
RITTAL sk 3383140
RIEGLER C 06 M  
Danfoss MBS32000 60G5930 0-16bar 4-20mA
SCHNEIDER LC1D1286FD  
IGUS CF31.15.04 4X1.5 2570AWM 100米/盘  
ODU Steckverbindungssysteme GmbH & Co. KG 181-135-000-301-000
K4RAO2现货供应FOX压力开关K4   
小强工控 CARLO GAVAZZI HDMS2337G0V21C 
BANNER BWA-MGFOB-001
GUTEKUNST D-090Y 弹簧 
LAPAR LPA11-1D2A6CPC1-32-1.6-ADA130-HY DN32;PN1.6
CASAPPA 80000466           KP40.109-06S8/40.109 S1                                                                     
KEB 07.03.300-0241
microsonic pico+15/WK/I 
B&R Industrie-Elektronik GmbH X20DI9371
UNIVER HA250800  
HEMOMATIK 3AST003480R0013
RIEGLER FM 45 M  
cembre B-TD410T
R. STAHL 8070/1-2-RS 自动控制器 
CASAPPA 76400074           HDP35.112/30.43 D1                                                                           
Proxitron LLK2
Lumberg "RST 3-224/10,0m
"
BECKHOFF C9900-D192  
英国ONDRIVES变速箱和减速器UPHG0.8-60RH-K   
MD MICRODETECTORS MDI38F 966   
SCHNEIDER STBSPU1003  
Micro Matic  BL-200-1231131
hydac ZBM300
VISHAY RPH100 1K
OMRON A22NW-3MB-TGA-G202-GE  
SCHNEIDER XB5AW31G5C0  
CASAPPA FP30.27R1-33S3-LOD/OD-N
Eaton Moeller 178826 KLV-36HWS-F 
SCHNEIDER MGU6.006.854D  
FINDER继电器563280480054   
DOLD安全继电器47329  BA9055 AC127V 100-1000IPM 1-20S   
KELLER A000015745 0-10bar 20ma  
STRACK 396X396-F9-27-1730 171608 
Gefran-2019 F047454 TPSA-M-1-F-B01C-T-V 2130X000X00 
DUNKERMOTOREN DR 62.0x40-2 SNR88180.03051+PLG52 SNR88851.01760  
SCHNEIDER NSYMR3025  
IPF IN120156   
BANNER SLPE25-1110AP8
UNIVER K1000320035  
FINDER继电器601280480030   
STEINEL 612-262(SZ8066.1*120*210)
Eaton Moeller 136062  
HILMA 8.1832.8032
UNIVER M1500250115  
BANNER Q20EL
CASAPPA 02000886             FRONT SECTION PLP20.16D0-54B2-LBE/BC-N-EL-A FS                                                   
ACR SRP-007 1.5M
NORELEM NLM02150-08  
OMRON NY532-1300-111213C62  
CASAPPA 02004081             PLP20.31,5D0-03S1-LGE/GD-N                                                                   
HAM-LET SSGA1/2RTSILVERPLATED
rechner IA0006 IAS-10-A22-S-100°C    10M
小强工控 CARLO GAVAZZI PS42R-MO11N6-Y00 
GEA Niro Float operated switch
MD MICRODETECTORS MDI63A 768   
El-O-Matic EL 100 220-240V 50Hz,Art-Nr.. 826.00.620
GE druck  PTX5072-TC-A1-CA-H1-PA 0~250MPa
STRAPEX  24VDC NO.1822.056.001
OMRON A22NW-3BL-TGA-G202-GC  
Turck NI10-K20-Y1 6M, NR1007206
ILME ILMGO 24.50 B  
BOSCH SR-A4.0230.030-00.000 NR1070076841
OMRON NYP35-213C6-15WC1000  
STRACK 446X496-F10-36-1730 178286 
ROBIN   KMP3075DL
BECKHOFF C9900-H569  
OMRON S8VK-G48024  
Barksdale    627H4-16-P9-Z23
Gefran-2019 F028277 TPSA-E-1-E-B04C-T-V 2130X000X00 
Eaton Moeller 194560 KSK-1N-CI 
sunfab SC-5025 R SAE B 齿轮泵 
EXSYS EX-44384  
RIEGLER 115.31  
CASAPPA PLP10.5-81E1/10.5 D-EL-FS
SCHNEIDER OVA50232  
SCHNEIDER A9F06116P  
STAHL  8040/1280 735+ws-749+ws.001+sw-022
OMRON A22NL-BGM-TYA-G202-YE  
小强工控 CARLO GAVAZZI S160156724 
FINDER继电器406170214300   
MD MICRODETECTORS MDI58B 2818   
UNIVER S1004404100M  
BEIJER编码器X2 PR015-B2（640000305）   
DOW BW30-4040
BANNER TL50BLY2Y2Y2Y2ALSQ
UNIVER K2000400100F  
ENNEBI ELETTRONICA "SBUDA15/6,5 Power supply 100W without P FC
IN:SB/88-265V – OUT:15VDC/6,5A"
SELET传感器OCV88/CPNSCC5   
BANNER K50BLXYXPQ
MD MICRODETECTORS MDI58C 13   
MD MICRODETECTORS MDI63A 491   
Rexroth MKD071B-061-GG0-KN
Eaton Moeller 179759 NHW-SLS-00/H/SI 
SCHNEIDER BMH2052P01F1A  
SCHNEIDER WP4002  
OMRON D40Z-1C2-S  
Eaton Moeller 107035 SWIRE-CAB-025 
HPI  P1CJN3060HL33C14N 
HPI  M1AAN2022HL20A01N 
EOS POWER  MODEL;LFWLT150-1003-K
VESTA电磁阀K52DP218   
SIEMENS 5SF1205  
SELET传感器B87EG124PSCKR   
MD MICRODETECTORS MDI58C 2681   
FHF Funke + Huster Fernsig GmbHSLD4,222022   
Phoenix Nr.2706386 插头 
SCHNEIDER XS4P1618617  CASAPPA W7001251           WSP20.20-54B5-LBE/BC/20.8-LBE/BC D/FS                                                        OMRON PYF-14-PU-L   ARELCO O2ppm SEE0022 序列号20610015MICRODETECTORS MDI63D 1668 小强工控 CARLO GAVAZZI PS42L-NT02RM-H00MD MICRODETECTORS MDI58C 740
新闻山东KAPSTO GPN 270 R 6040 4厂家报价

分析滤料污染加重的原因主要有：首先随着油田开发时间的延长，采出水中细菌数量大大增加，其中硫酸盐还原菌会导致采出水中硫化物含量增加，这些硫化物可被滤料截留并粘附在滤料表面，使滤料颗粒之间发生粘连。其次聚驱污水及水驱见聚污水相对水驱污水油水分离及悬浮物沉降困难，导致过滤器来水中污油、悬浮物含量偏高，加快了滤料污染的速度。为了完成艰巨的含油污水处理工作，大庆油田每年需要更换大量滤料。废弃的滤料一般运到站外直接填埋，但报废滤料所携带的污油等污染物在多种自然因素的长期作用下会逐渐扩散，这样会对环境造成巨大污染。