英语词汇“caving ground”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	caving ground
释义	caving ground caving ground [′kāv·iŋ ‚grau̇nd] (mining engineering) Rock formation that will not stand in the walls of an underground opening without support such as that offered by cementation, casing, or timber.
随便看	hardness number hardness of metals hardness of minerals hardness of water hardness ratio 1 hardness scale hardness scales hardness surveillance hardness surveillance evaluation program hardness test hardness tester hardness test plan hardness tests hard news hard-news hardnews hard news, soft news, and infotainment hardnose hard nosed hard-nosed hardnosed hard nose the highway hard nut hard nut to crack hardock

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