A forced-closing-and-opening plunger pump is developed to solve the problems of gas lock and sand inflow and low pump efficiency in steam injection Wells.

针对辽河油田蒸汽吞吐油井存在气锁、出砂、后期油稠泵效降低的状况，研制了强启闭柱塞抽油泵。

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The solution of problems such as water hammer, hard to dispose the noncondensables, air lock and selection of steam trap were discussed to save energy, protect environment and lower the cost.

指出蒸气凝结水回收的重要性的同时对炼油厂蒸气凝结水回收系统中存在的诸如水击、非凝结性气体不能排除、气阻及疏水阀的选型安装等问题的解决办法进行了探讨。

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But governments are doing themselves and their financial industries a disservice by contemplating entering into FATCA agreements with the U.S. Backlash against the law is growing, and Treasury is in a race against time to lock it into place before a repeal effort can gain steam.

FORBES: Coerced Foreign Tax Compliance Is Killing American Jobs