英语词汇“bell tap”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	bell tap
释义	bell tap bell tap [′bel ‚tap] (petroleum engineering) A cylindrical fishing tool having an upward-tapered inside surface provided with hardened threads; when slipped over the upper end of lost, cylindrical, downhole drilling equipment and turned, the threaded inside surface of the bell tap cuts into and grips the outside surface of the lost equipment. Also known as bell; bell screw; bell socket; box bill; die; die collar.
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。