正确答案: D
5年
题目:带有雪橇型键槽且根部有适当圆角的双螺旋桨轴或艉轴,其检验间隔期规定为()。
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学习资料的答案和解析:
[单选题]艉轴铜套损坏的主要形式有()。Ⅰ.腐蚀;Ⅱ.裂纹;Ⅲ.过度磨损;Ⅳ.套合松动;Ⅴ.接缝不良。
Ⅱ+Ⅲ+Ⅳ+Ⅴ
[单选题]() allows for expansion and water make up in the water cooling system.
A head tank
[单选题]The injector pump is operated by a cam which drives the () up and down.
plunger
[单选题]Valve overlap is the period during which ().
both valves are ope
[单选题]Engine displacement is equal to the cylinder ().
area times the stroke, times the number of cylinders