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词汇
down-hole
释义
down-hole
COCA³¹⁵¹¹¹⁺
⁴
BNC¹⁷³⁹⁹⁵⁺
²
基本
例句
🌏井下管柱；下孔法；下井
The key to the down-hole fault diagnosis of the pumping system lies in obtaining the down- hole pump diagrams.
对分层有杆抽油系统进行故障诊断的关键是获得井下泵示功图。
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更新时间：2025/4/2 7:37:39