A.1B.2C.3D.4
A.進(jìn)位齒輪壞B.鋼帶斷C.浮子卡住D.恒力簧卡
A.過(guò)濾器堵塞B.雜質(zhì)進(jìn)入流量計(jì)使轉(zhuǎn)子卡死C.轉(zhuǎn)子損壞D.磁性連接軸器失次E.介質(zhì)流量低于流量計(jì)下限