他是钻井工程师。钻井设备。
The application is designed with alarm logic that emulates the thought process of a drilling engineer.
该应用采用的预警逻辑，模拟了钻井工程师的思考过程。
It is necessary that a good drilling engineer should know foreign languages.
一个好的钻井工程师必须懂得几门外语。
It is necessary that a good drilling engineer should know foreign languages.
一个好的钻井工程师必须懂得几门外语。
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