“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	period of an element period of an ergodic class period of an oscillation period of a semigroup period of a wave period of coefficients period of dormancy period of intercalary month period of light variation period of limitation of administrative litigation period of military government period of moon's node Period of Political Instruction Period of Political Instruction Constitution of Republic of China period of pseudorandom numbers period of revolution period of revolution, orbital period Period of Rex in Rome period of rotation Period of Southern and Northern Courts period of submergence tolerance period of translations periodogram periodogram analysis periodogram detector

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