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| vertical speed indicator (一种用来指示爬升率或下降率或零爬升或在九点钟水平位置的飞行仪表。垂直速度指示器是一种敏感的压力表，用来感测静压的变化率。大气压力直接传到包含仪表壳体的真空膜盒或膜片。空气可以以相对缓慢的速度通过毛细管进人壳体。真空膜盒内部快速的压力变化和壳体内压力的较慢变化之间的差，引起膜盒的扩张或缩小。这个运动能放大，并且可以通过齿轮系显示在刻度盘上) | |||
| vertical velocity indicator | |||
| vertical speed indicator | |||
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垂直 速度指示器 : 11 phrases in 3 subjects |
| Aviation | 7 |
| Electronics | 2 |
| Space | 2 |
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