短語詞組短語propelled belt tripper 自動(dòng)推進(jìn)皮帶走行車conveyer belt tripper 輸送機(jī)卸料小車self -propelled belt tripper 自動(dòng)推進(jìn)皮帶走行車tripper belt 多點(diǎn)裝載第器 返回 belt tripper