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【单选题】

掘进机悬臂销轴所注润滑脂为()

A.
二硫化钼锂基脂
B.
ZL-3锂基脂
C.
钙基脂
D.
钠基脂
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题目标签:销轴润滑脂悬臂
参考答案:
参考解析:
.
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举一反三

【单选题】下面()不是润滑脂的特点。

A.
可简化润滑系统设计,不必专用的供应设备
B.
密封性差,需借助密封材料态封,灰尘、水分易侵入
C.
有良好的密封作用,可防尘,防水分进入

【单选题】8.The London EyeThe London Eye is a cantilevered(带悬臂的) observation wheel on the South Bank of the River Thames in London. It is Europe's tallest cantilevered observation wheel, and is the most popular...

A.
The London Eye is a symbol of London.
B.
Visitors can walk around inside the capsule.
C.
The London Eye is the world's tallest Ferris wheel.
D.
The London Eye can not offer the highest public viewing point in London now.