这种齿轮传动的缺陷在于，每隔齿轮的中心到啮合点的距离在运转的过程中是变化的。
The problem with this type of gear is that the distance from the center of each gear to the point of contact changes as the gears rotate.
这种齿轮传动的缺陷在于，每隔齿轮的中心到啮合点的距离在运转的过程中是变化的。
The problem with this type of gear is that the distance from the center of each gear to the point of contact changes as the gears rotate.
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