... groundwater drawdown 地下水水位降深,地下水水位下降 permissible drawdown 容许水位降落;工作深度 rapid drawdown 骤[然泄]降 ...
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其工作深度为400 ~ 6000米。
工具管柱要到达工作深度或有关层段所必须经过的在井筒中存在的最小直径。
The smallest diameter present in a wellbore through which a tool string must pass to enable access to the operating depth or zone of interest.
能将科学家、工程人员和仪器设备带到深海进行海洋资源勘探和其他作业,最大工作深度从50米到7000米。
The serialization of manned submersibles can carry out the exploration of marine resources and other operating with the maximum working depth from 50 meters to 7000 meters.
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