雙發(fā)雙收法doubletrack haulageroad: 雙軌運輸巷道doubletop mt: 達布爾托普峰doubletrack prices system: 價格雙軌制doubletoneoscillator: 雙音振蕩器doubletrack tape recording: 雙跡磁帶記錄下載手機詞典可隨時隨地查詞查翻譯