“churn shot drill”的概念、定义、翻译、参考文献-科学参考

单词	churn shot drill
释义	churn shot drill [`chǝrn ´shät ´dril] ^{MECHANICAL ENGINEERING} A boring rig with both churn and shot drillings.
随便看	saponin saponite Sapotaceae sappare sapphire sapphire quartz sapphire whiskers sapphirine sapping Saprist saprobic saprogen saprogenous ooze Saprolegniales saprolite saprolith sapropel sapropel-clay sapropelic coal sapropelite sapropel-peat saprophage saprophyte saprovore saprozoic

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