“roof control”的概念、定义、翻译、参考文献-科学参考

单词	roof control
释义	roof control [`rüf kǝn´trōl] ^{MINING ENGINEERING} The study of rock behavior when undermined by mining operations, and the most effective measures to control movements.
随便看	potassium cyanide potassium cyanoargentate potassium cyanoaurite potassium dichloroisocyanurate potassium dichromate potassium dihydrogen phosphate potassium diphosphate potassium feldspar potassium ferric oxalate potassium ferricyanide potassium ferrocyanide potassium fluoborate potassium fluoride potassium fluosilicate potassium gluconate potassium glutamate potassium glycerinophosphate potassium glycerophosphate potassium gold chloride potassium gold cyanide potassium hydrate potassium hydrogen phosphate potassium hydrogen phthalate potassium hydroxide potassium hyperchlorate

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