As he turned back the clock, the dust disk collapsed into a dense, bright ring.
模型显示，随着时光倒流，尘埃盘收缩成一个致密的明亮圆环。
The dust will also cause bearing, cylinder-wall, and piston and ring wear.
灰尘同．样也会导致轴承、气缸壁、活塞和活塞环的磨损。
The dust will also cause bearing, cylinder-wall, and piston and ring wear.
灰尘同．样也会导致轴承、气缸壁、活塞和活塞环的磨损。
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