正确答案: D
Ⅰ+Ⅱ+Ⅲ
题目:可靠性定义中所述及的“规定的条件”,包括()。Ⅰ.环境温度、压力、湿度;Ⅱ.振动;Ⅲ.承受的负荷
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学习资料的答案和解析:
[单选题]The crankshaft deflection is at first to be () before and after repair.
measured
[单选题]The needle valve will open when the fuel pressure acting on the needle valve () exerts a sufficient force to overcome the spring compression.
tapered face