A.標(biāo)準(zhǔn)值 B.特征值 C.設(shè)計(jì)值 D.平均值
A.≥0.010 B.≥0.015 C.≥0.020 D.≥0.025
A.≥35% B.≥40% C.≥45% D.≥50%