A.4小時(shí)B.2小時(shí)C.1小時(shí)D.3小時(shí)
A.三輥B.切斷機(jī)三輥C.切斷機(jī)刀盤D.牽伸三輥
A.輸棉風(fēng)機(jī)問(wèn)題B.凝棉器問(wèn)題C.推料器問(wèn)題D.料倉(cāng)料多問(wèn)題