“roof bolt”的概念、定义、翻译、参考文献-科学参考

单词	roof bolt
释义	roof bolt [`rüf ´bōlt] ^{MINING ENGINEERING} One of the long steel bolts driven into walls or roofs of underground excavations to strengthen the pinning of rock strata.
随便看	hybrid magnet hybrid merogony hybrid microcircuit hybrid molecule hybrid network hybridoma hybrid orbital hybrid parameter hybrid plasmid hybrid problem analysis hybrid programming hybrid propellant hybrid propulsion hybrid redundancy hybrid relay hybrid repeater hybrid rocket hybrid set hybrid simulation hybrid sterility hybrid swarm hybrid system hybrid system checkout hybrid tee hybrid thin-film circuit

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