英语词汇“immediate roof, nether roof”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	immediate roof, nether roof
释义	immediate roof, nether roof 直接顶; 位于煤层或伪顶之上具有一定的稳定性,移架或回柱后能自行垮落的岩层。
随便看	sublation sublations sublatio retinae sublative sublative case sublattice sublattice magnetization sublattices sublaunched sub launched sublaunched missile sub-launched mobile mine sub-layer sublayer sublayering sublayer laminar sub-layers sublayers subldontoblasic sub-leader subleader subleaders subleadership subleading subleaflet

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