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| laser altimeter (一种高度表，用来测量激光脉冲从飞机正下方的地面返回的时间。这个时间能够被转化为地面上的高度，这就是高度表所指示的，它比无线电或雷达高度表更精确，激光高度表测量和指示绝对高度) | |||
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激光高度表 : 3 phrases in 2 subjects |
| Aviation | 2 |
| Space | 1 |
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