A.2~4 B.1~2 C.3~6 D.1~5
A.45° B.90° C.135° D.180°
A、檢查轉(zhuǎn)輪有無裂紋 B、檢查轉(zhuǎn)輪偏重是否超過允許值 C、檢查轉(zhuǎn)輪連接是否松動 D、檢查轉(zhuǎn)輪汽蝕磨損狀況