Application of Bolt, Steel Mesh and Anchor Combined Support to Open-Off Cut of Fully Mechanized Longwall Mining Face with Top Coal Caving Technology是什么意思_Application of Bolt, Steel Mesh and Anchor Combined Support to Open-Off Cut of Fully Mechanized Longwall Mining Face with Top Coal Caving Technology在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句