“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	private opera troupes private ordering private ownership of rural land Private Photography private placements private plot private post private property private prosecution private regulation private remedy private reserves private school private school building private sector of the economy private self private sphere private transportation private trust private tutoring private writings of calligraphy and painting in Qing Dynasty privatization privatization of public law Privatization, Restructuring, and Regulation of Network Utilities privilege

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