sliding motion
英
美
- motion n.移动；动作；打手势；示意；提议；大便v.示意；运动；向...打手势
- sliding n.滑；滑行；移动动词slide的现在分词.
- Fees is calculated on a sliding scale according to income.
这种费用是根据收入高低滑动折算的。
- If the oxide film is hard, sliding occurs on the outside thereof.
如果氧化膜较硬，则滑动在它们的外面发生。
