A matrix method of fault tree analysis is introduced in the paper. A main punp in haulage unit of MG series shearers is analysed and studied by the method.是什么意思_A matrix method of fault tree analysis is introduced in the paper. A main punp in haulage unit of MG series shearers is analysed and studied by the method.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句