【名词&注释】
导热性(thermal conductivity)
[单选题]赛龙艉轴承材料的缺点是()。Ⅰ.弹性低;Ⅱ.导热性差;Ⅲ.不耐高温;Ⅳ.不耐磨;Ⅴ.寿命低。
A. Ⅱ+Ⅲ
B. Ⅰ+Ⅱ+Ⅳ+Ⅴ
C. Ⅲ+Ⅳ+Ⅴ
D. Ⅱ+Ⅲ+Ⅳ
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学习资料:
[单选题]The diameter of the gravity disc is too big It causes oil to flow through the water outlet We changed the disc and no () is found in the water outlet.
A. water
B. oil
C. scale
D. ridge
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