Application and Effect of Water Control Technique in Fully Mechanized Mining in Shallow Coal Seam under a Thick Loosened Aquifer with a Thin Bedrock, Shendong Mining Area是什麼意思_Application and Effect of Water Control Technique in Fully Mechanized Mining in Shallow Coal Seam under a Thick Loosened Aquifer with a Thin Bedrock, Shendong Mining Area在線翻譯_英語_讀音_用法_例句