小艇。船体构造和船材尺寸。材料。钢、铝合金及其它材料。

Small craft - Hull construction and scantlings - materials - Steel, aluminium alloys, wood, other materials.

youdao

小艇。船体构造和船材尺寸。材料。钢、铝合金及其它材料。

Small craft - Hull construction and scantlings - materials - Steel, aluminium alloys, wood, other materials.

youdao