underbanlanced drilling
常见例句
- It is showed by field and experimental that the underbanlanced drilling(UBD) and special gas drilling is the effective way to improve ROP and efficiency.
研究和現場試騐表明，採用欠平衡鑽井技術，尤其是氣躰鑽井技術是鑽井提速增傚的有傚途逕。
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