Without his machines with moving parts, we might not have modern-day robots.
2
政策的一个动力是，公司已经开始建造大规模的星座，包括成百上千的卫星和其中许多运动部件。
One impetus for the policy is that companies are already starting to build massive constellations, comprising hundreds or thousands of satellites with many moving parts among them.
3
发动机内部的机油在运动部件上形成一层膜。
Lubricating oil inside the engine produces a film on the moving parts.
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