“drifter”的概念、定义、翻译、参考文献-科学参考

单词	drifter
释义	drifter [`drif·tǝr] ^{MECHANICAL ENGINEERING} A rock drill, similar to but usually larger than a jack hammer, mounted for drilling holes up to 4¹/₂ inches (11.4 centimeters) in diameter. ^{MINING ENGINEERING} 1. A person who excavates mine drifts. 2. An air-driven rock drill used for excavating mine drifts and crosscuts.
随便看	slip direction slip face slip flow slip fold slip form slip forming slip friction clutch slip joint slip line slip-off slope slippage slippage loss slipped disk slipper brake slipping slipping cut slip plane slip ratio slip ring slips slip sheet slip speed slip surface slip tongue slip velocity

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