The inflow rates of many mines in the karst region of our country not only variate with the changes of mine depth,gallery length and other factors but also have close relationship with precipitation.

 
  • 我國巖溶地區許多礦床的涌水量不僅隨開(kāi)拓深度(以下簡(jiǎn)稱(chēng)深度)與巷道長(cháng)度(以下簡(jiǎn)稱(chēng)巷長(cháng))等因素的變化而變化,而且與降雨關(guān)系密切,并對降雨有明顯滯后反映。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan