diffrent heights是什么意思 diffrent heights怎么读
diffrent heights的用法和样例
- Bristles with a variety of heights are used to give an overall "medium" rating.
混合不同高度的刷毛，调制出软硬度适中的刷头。 - By sending satellites round the earth at different heights,we can find out how much air there is at each height.
我们把卫星送入不同高度的轨道饶地球运行，就能测出地球上空不同高度处空气的含量。
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