单词：shaft drill jumbo
shaft drill jumbo的用法和样例：
例句
- A primary pump directs the meltwater from the borehole into the drill, and a secondary pump sends the meltwater up the tether to the surface for analysis.主要的帮浦会将凿孔内的融冰导入钻井机中，而次要的帮浦则是将融冰藉由缆绳向上传送到地表，以供分析。
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