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1)  nitrogen gas charge
充加氮气
2)  nitrogen pressure charge
氮气加压充灌
3)  nitrogen packed-in
充氮气
1.
The mud logging measures and show zone distinguishing under the drilling condition of nitrogen packed-in drilling fluid;
充氮气钻井条件下的录井对策及显示层识别
4)  charge nitrogen equipment
充氮气装置
1.
This paper describes the operating principle, technique requirements, design method about the vacuum-pumping, removal of humidity and charge nitrogen equipment of the QDX refrigerator compressor, which is a product incorporating all the technique in mechanical manufacture, computer and electronic control and the vacuum-pumping.
本文详细叙述了集机械、计算机控制、电气和真空技术为一体的QDX系列冰箱压缩机抽真空除湿充氮气装置的工作原理、技术要求以及设计步骤。
5)  drilling by filling nitrogen
充氮气钻井
6)  nitrogen precharge valve
氮气予充阀
补充资料:充炭黑充油丁苯橡胶
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性质:同时含有炭黑和油的丁苯橡胶。性能和用途与充炭黑丁苯橡胶和充油丁苯橡胶相似。由冷聚丁苯胶乳与炭黑的水分散液和油乳液经混合、凝聚、洗涤、过滤、干燥等步骤制得。

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