Detection and treatment of leakage point in vacuum system of No,1 steam turbine of Mine-Mouth Power Station of Pingdingshan Colliery Group是什麼意思_Detection and treatment of leakage point in vacuum system of No,1 steam turbine of Mine-Mouth Power Station of Pingdingshan Colliery Group在線翻譯_英語_讀音_用法_例句