A.斷裂 B.變形 C.測力盤指針回轉(zhuǎn) D.據(jù)強(qiáng)度等級加荷即可
A.3-30MPa/s B.30-40MPa/s C.15~40MPa/s D.40~60MPa/s
A.±5% B.±3% C.±2% D.±1%