bimetal fiber method 双金属丝法
This paper introduces successful construction method and control measure currently used for holedrill, borehole deviation, protection tube, and embedment and installation of bimetal mark.
介绍了目前比较成功的倒垂孔钻孔、钻孔偏斜、保护管安装、双金属标的埋设及安装等施工方法和控制措施。
The invention relates to a bimetal liquid-liquid composite packer and a production method thereof.
本发明涉及一种双金属液-液复合捣镐及其制造方法。
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