A.減小過大的中拱彎矩 B.減輕船體震動(dòng) C.有利于提高船舶的航速 D.A、B、C都對(duì)
A.大于1.5%Lbp B.不大于1.5%Lbp C.不大于2.5%Lbp D.大于2.5%Lbp
A.大于0.02Lbp B.大于0.012Lbp+2.0 C.大于0.025Lbp+2.0 D.大于0.02Lbp+2.0