“positive derail”的概念、定义、翻译、参考文献-科学参考

单词	positive derail
释义	positive derail [`päz·ǝd·iv di`rāl] ^{MINING ENGINEERING} A device installed in or on a mine track to derail runaway cars or trips.
随便看	microgeography microglia microglossia micrognathia microgram micrograph micrographic micrographics microgroove record microgyria microhabitat microhardness microheterogeneity microhm microholography Microhylidae microhysteresis effect microimage microincineration microinfarct microinjection microinstruction microinterferometer microinvasion microjacket

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