英语词汇“mat packs”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	mat packs
释义	mat packs mat packs [′mat ‚paks] (mining engineering) Timbers laid side by side into a solid mass 2 by 2½ feet (61 by 76 centimeters) square and 4-6 inches (10-15 centimeters) thick, kept together by wires through holes drilled through the edges of the mass, carried into a mine and built up to make effective roof supports.
随便看	target system assessment target system component target system control library target system topical targett target/tactical acquisition console target/talent control system target test program generation target test vehicle target text target theory target threat manager target threshold speed target time-to-failure tinamidae tinamides tinamiform tinamiformes tinamou tinamous tin-antimony oxide tinar tinaroo virus tinayguk river tinayguk wild river

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