“drill string”的概念、定义、翻译、参考文献-科学参考

单词	drill string
释义	drill string [`dril ´striŋ] ^{MECHANICAL ENGINEERING} The assemblage of drill rods, core barrel, and bit, or of drill rods, drill collars, and bit in a borehole, which is connected to and rotated by the drill collar of the borehole.
随便看	break breakage and reunion breakaway breakaway phenomenon breakaway wrist break-before-make contact breakbone fever break-bulk cargo break contact breakdown breakdown diode breakdown impedance breakdown law breakdown potential breakdown region breakdown torque breakdown voltage breaker breaker-and-a-half breaker-and-a-third breaker cam breaker depth breaker plate breaker points breaker terrace

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