A.1.2m B.l.5m C.1.8m D.4m
A.3 B.4 C.6 D.10
A.皮數(shù)桿立的距離過大 B.砂漿飽滿度不符合要求 C.砂漿稠度過大 D.準(zhǔn)線繃得時(shí)松時(shí)緊