- falling heigh
- height of fall
- 坠落: fall; drop
- 高度: altitude; height; elevation
- 落高: fall distance
- 降落高度与行移距离比值: fall height-travel distance ratio
- 坠落: fall; drop 飞机向地面坠落。 the airplane fell towards the earth.; 坠落高度 height of fall; 坠落试验 drop shutter test
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