“piston drill”的概念、定义、翻译、参考文献-科学参考

单词	piston drill
释义	piston drill [`pis·tǝn ¦dril] ^{MECHANICAL ENGINEERING} A heavy percussion-type rock drill mounted either on a horizontal bar or on a short horizontal arm fastened to a vertical column; drills holes to 6 inches (15 centimeters) in diameter. Also known as reciprocating drill.
随便看	fasciculate fasciculation potential fasciculus fascine Fasciola hepatica fasciole fascioliasis fasciolopsiasis Fasciolopsis buski fascioscapulohumeral dystrophy fast fast-access storage fast automatic gain control fast axis main-rope haulage system main routine mainsail main sequence main sequence star main shaft main stage main station main storage main stream main stroke

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