“leapfrog system”的概念、定义、翻译、参考文献-科学参考

单词	leapfrog system
释义	leapfrog system [`lēp´fräg ´sis·tǝm] ^{MINING ENGINEERING} A system used in mining coal on a longwall face; self-advancing supports are used, with alternate supports advancing as each web of coal is removed.
随便看	endogenetic endogenic endogenote endogenous endogenous pyrogen endogenous variables endogenous virus endognath endolecithal endolithic endolymph endolymphatic stromomyosis endomembrane system endomeninx endomere endometamorphism endometrioma endometriosis endometritis endometrium endomitosis endomixis endomorph endomorphism Endomycetales

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