腐蚀

Valves lining and Reducing Valves external corrosion Valve, the transportation of drinking water equipment, body lining must be non-toxic, corrosion, wear, bright and clean, so water resistance as small as possible.

如阀门的压板、螺栓和蝶板材质不同，很容易发生电化学腐蚀，腐蚀生成的铁锈延伸至密封面，影响阀门的密封效果，另外阀门安装在阀井内，浸泡在水中，防止锈蚀是很重要的，因此内衬要覆盖完善，防止产生锈蚀造成供水的二次污染。

The etched concave surface on cross beam is caused by long -time erosion of sewage on the bridge dropping from train.

桥梁上的腐蚀凹面是列车上的污物掉落在桥上长期腐蚀的结果。

In order to investigate the corrosion of power plant chimney by the condensed sulfuric acid from the flue gas,corrosion of C30 concrete exposed to 15% sulfuric acid solution at 80℃ was studied.

研究了电站烟囱C30混凝土在80℃、质量分数为15%硫酸溶液浸泡条件下的腐蚀规律，根据Fick扩散方程和反应速率方程，提出一个简化的移动边界腐蚀模型。

In order to enhance their corrosion-proof capability and improve maintainability and service life, the author makes a suggestion of reasonable selection of the coating thickness and thread fit clearance while ensuring the thread attachment strength, based on the re.

为提高飞机螺纹连接件的抗腐蚀能力，改善飞机的维修性能和提高飞机的使用寿命，本文根据镀层厚度与螺纹配合间隙的关系，结合国内外相应标准的规定，在保证螺纹连接强度的情况下，对如何合理选择镀层厚度和螺纹配合间隙来提高抗腐蚀能力的问题做了论

Since the enhanced contraceptive action of copper-bearing intrauterine device is commonly attributed to copper ions released as a result of copper corrosion, this thesis focused on the investigation of various factors probably affecting the corrosion behavior of copper in the case by in vitro measurements.

为配合各种新型含铜宫内节育器[如含消炎痛VCu IUD、Tcu IUD、γ型IUD及含左旋18-甲基炔诺酮的Cu IUD]的研制与临床应用，探索对避孕起关键作用的铜在各种情况下的腐蚀行为及影响因素，本文对几种新型Cu IUD在宫腔内可能涉及的腐蚀类型及影响因素进行了研究。

The main cause of corrosion case of heat exchange tubes for a heater of nature gas by hot water jacket was studied by means of water quality examination, scanning electron microscope, X-ray photoelectron spectroscope and X-ray diffraction analysis.

用水质分析和腐蚀产物的XRD、XPS、SEM分析等方法及密闭系统静态挂片实验，研究了加热炉腐蚀的主要原因和机理。

The atmospheric corrosion of MB8 magnesium alloy deposited with NH4Cl and in the presence of SO2(25℃and 85%±5% RH) was studied by gravimetry, focus ion beam, Fourier transform infrared spectroscope and X-ray diffraction.

目的 通过研究NH4Cl和SO2对MB8镁合金大气腐蚀行为的影响，揭示大气环境污染因素对MB8镁合金腐蚀的影响规律。

The atmospheric corrosion of MB8 magnesium alloy deposited with NH4Cl and in the presence of SO2(25 ℃and 85 %±5 % RH) was studied by gravi metry,focus ion beam,Fourier transform infrared spectroscope and X-ray diffraction.

目的通过研究 NH4Cl 和SO2对MB8镁合金大气腐蚀行为的影响，揭示大气环境污染因素对MB8镁合金腐蚀的影响规律。

In the light of the serious erode situation of down hole stems,hanging ring technology for erode monitor to oil well dill stem in Lunnan oilfield has been used.

针对井下管柱腐蚀严重的情况，轮南油田采用了井下挂环技术对油井管柱的腐蚀状况进行监测。

Electric stainless steel diaphragm, UHB-ZK wearable pump sand decay, FZB fluoroplastics self-priming pump, FSB fluorine plastic alloy centrifugal pump, GC boiler feed pump, IHF衬氟centrifugal pump, FB, AFB corrosion-resistant chemical pumps, IH chemical centrifugal pump, screw pump coal slurry, IHG chemical pipeline pump, IS clean water pump, electric diaphragm pumps vertical,衬氟pneumatic diaphragm pumps, stainless steel pneumatic diaphragm pumps, pneumatic diaphragm pumps of cast iron, aluminum alloy pneumatic diaphragm pumps, pneumatic diaphragm pump engineering, GW pump sewage pipes, LW Vertical Sewage Pump, ZWL Direct-coupled self-priming sewage pump, ISG Vertical Pipeline Pump, ISW Horizontal Pipeline Centrifugal Pump, CQB magnetic heavy-duty stainless steel pumps, CQB - G stainless steel high temperature magnetic pump, G-type screw pump | Single screw pump | pump concentration, JMZ, FMZ wine self-priming pump self-priming chemical pump, ZX water self-priming pump, ISWH, ISWHD horizontal stainless steel pipeline pump chemical, QJ deep well pump, KCB, 2CY gear pumps, PBG shielding pipeline pump, CDLF stamping stainless steel multi-stage centrifugal pump, LG, LG-B high-level multi-stage centrifugal water supply, S, SH in the open double suction centrifugal pump, DL, DLR Vertical multi-stage centrifugal pump, ISWR, ISWRD horizontal pump hot water pipes, GDL pipeline multi-stage pumps, electric diaphragm pumps衬氟, tear-style diving sewage pump, sewage pump automatically mix, ZW Self-priming sewage pump without blockage, WQ-type sewage submersible pump-free plug, FPZ, PVZ corrosion-resistant self-priming pump.

不锈钢电动隔膜泵， UHB-ZK耐磨耐腐沙浆泵， FZB氟塑料自吸泵， FSB氟塑料合金离心泵， GC锅炉给水泵， IHF衬氟离心泵， FB、AFB耐腐蚀化工泵， IH化工离心泵，水煤浆螺杆泵， IHG化工管道泵， IS清水离心泵，立式电动隔膜泵，衬氟气动隔膜泵，不锈钢气动隔膜泵，铸铁气动隔膜泵，铝合金气动隔膜泵，工程塑料气动隔膜泵， GW管道排污泵， LW立式排污泵， ZWL直联式自吸排污泵， ISG立式管道泵， ISW卧式管道离心泵，CQB重型不锈钢磁力泵， CQB-G高温不锈钢磁力泵，G型螺杆泵|单螺杆泵|浓浆泵，JMZ、FMZ自吸酒泵自吸化工泵，ZX清水自吸泵，ISWH、ISWHD卧式不锈钢化工管道泵，QJ深井泵，KCB、2CY齿轮油泵，PBG屏蔽管道泵，CDLF不锈钢多级冲压离心泵，LG、LG-B高层给水多级离心泵，S、SH中开式双吸离心泵，DL、DLR立式多级离心泵，ISWR、ISWRD卧式热水管道泵，GDL多级管道泵，衬氟电动隔膜泵，撕裂式潜水排污泵，自动搅匀排污泵，ZW自吸无堵塞排污泵，WQ型潜水式无堵塞排污泵，FPZ、PVZ耐腐蚀自吸泵。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！