“downhole junk”的概念、定义、翻译、参考文献-科学参考

单词	downhole junk
释义	downhole junk Encyclopedia 工学钻井复杂事故种类释 downhole junk井下落物钻井时，形状不规则且无打捞部位可与打捞工具连接的物体（如钻头牙轮、刮刀片、井口工具等）落入井内的现象。
随便看	laboratory test detection method laboratory（house）standard labor capacity identification labor contract labor contract expiring upon completion of a given task Labor Contract Law of the People’s Republic of China labor contract with a non-fixed term labor-cost-orientation Laborde Inheritance Case labor dispute labor dispute arbitration committee labor dispute arbitration finality of arbitral award labor dispute arbitration jurisdiction labor dispute lawsuit labor dispute mediation labor dispute mediation committee labor dispute of Zhonghua Book Company in 1931 labor disputes labor duality labor economics labor education labor force allocation efficiency labor force industry structure labor force transfer training labor health regulations

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