正确答案: B
焊补
题目:舵杆纵向裂纹应采用()修理。
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学习资料的答案和解析:
[单选题]故障率曲线分为三个阶段,不能列为三个阶段之中的是()。
平均故障期
[单选题]当小型船舶的螺旋桨直径D()m时,螺旋桨和艉轴允许采用无键环氧树脂连接。
<1.5
[单选题]At the top of the A-frames there is a strong cast iron frame called ().
the scavenging box
[单选题]The engine is reversed by axial displacement of the camshafts In order for this to be carried out, the cams are () with inclined transition faces.
shaped