“concave bit”的概念、定义、翻译、参考文献-科学参考

单词	concave bit
释义	concave bit [`kän´kāv ´bit] ^{DESIGN ENGINEERING} A type of tungsten carbide drill bit having a concave cutting edge; used for percussive boring.
随便看	heliotype heliox Heliozoia heliozooid helipad heliport helitron helium helium-3 helium-3 maser helium-4 helium burning helium-cadmium laser helium film helium flash helium I helium II helium liquefier helium magnetometer helium-neon laser helium-oxygen diving helium refrigerator helium spectrometer helium stars Helix

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