流量控制器：对于高温，对腐蚀性介质，在特殊材料和特殊设计。
Flow controllers: for high temperatures, for aggressive media, in special materials and special designs.
脱盐水介质中含有低浓度的酸或碱，它们对橡胶有较大的腐蚀性。
Desalting water medium containing low concentration of acid or base, they have more rubber on the corrosion.
由于介质和材料的特殊性，人们对海泥的腐蚀性和管线钢在其中的腐蚀行为了解得还不太深入和系统。
Because of the particularity of the medium and material, our knowledge of corrosivity of sea mud and behavior of pipeline steel exposed in it is not enough.
通过对安全阀失效原因的分析，得出介质腐蚀性、粘度、温度压力是使安全阀失效的因素，同时也是影响安全阀校验周期的因素。
It is shown that medium causticity, adhesiveness, temperature and pressure are factors of safety valve lapse and safety valve inspection time based on the analysis the reasons of safety valve lapse.
阐述了离子膜烧碱主要生产工序介质的腐蚀性及对主要设备、泵、阀所采取的防腐措施。
The corrosiveness of medium in the main process of ionic membrane caustic soda production, and anticorrosion measures of main equipment such as pumps and valves were explained.
目前国内关于材料在腐蚀环境低周疲劳性能研究数据很少，这是由于介质具有腐蚀性，对试验设备、试样、试验环境及人员都有很高要求，试验难度很大，试验成功者廖廖无几。
This is because the mediums are corrosive, which has great requests for test equipments, test specimens, the experimental environment and testers. It is big difficulty to carry out the experiment.
广泛应用于机械、石油、化工、冶金、矿山、电力等部门，测量对铜和铜合金无腐蚀性介质的压力。
Widely used in machinery, petroleum, chemical, metallurgical, mining, and electric power sector, measured on copper and copper alloy non-aggressive media pressure.
广泛应用于机械、石油、化工、冶金、矿山、电力等部门，测量对铜和铜合金无腐蚀性介质的压力。
Widely used in machinery, petroleum, chemical, metallurgical, mining, and electric power sector, measured on copper and copper alloy non-aggressive media pressure.
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