卧式车床方刀架部件的丝杠与螺母之间的间隙是可以调整的。
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Ships consume lesser fuel than airplane
A. 对
B. 错
Airplanes are designed to carry dangerous materials.
A. 对
B. 错
If you just want to export small loads, air freight might be a better choice.
A. 对
B. 错
In every corner of the world, there is a port that can recevie large ships carrying containers.
A. 对
B. 错
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