"查查詞典"手機(jī)版
千萬人都在用的超大詞匯詞典翻譯APP
- Study on the compound supporting technology of deep roadway in tilted stratum
深井傾斜巖層巷道復(fù)合支護(hù)技術(shù)研究 - A sharp ridge with steeply sloping sides , produced by erosion of the broken edges of highly tilted strata
豚脊丘,陡峻的山脊由于對高斜層破碎山背的侵蝕而形成的陡峭的山背