| 释义 |
- 升力中心：在流体力学中，升力中心是压力场对物体作用的总和所产生的力通过的点。在升力中心处作用的总力矢量是通过物体表面的压力矢量场的面积积分。结果力和升力中心位置产生了与原始压力场相等的力和力矩。
1 [航]?升力中心 ... 升力再入航天器 lifting reentry vehicle 升力中心 center of lift 升面构造 aerostructure ...
- 1
If you go much faster, the center of lift moves back on the wing, pushing the nose down and increasing velocity, until you soon approach the speed of sound. 如果飞机飞的太快的话，升力的重心就会从机翼转移到前半部机身上，飞机就会下降，速度会接近音速。 - 2
If you go much faster, the center of lift moves back on the wing, pushing the nose down and increasing velocity, until you soon approach the speed of sound. 如果飞得太快的话，升力的中心会向机翼后部移动，使飞机的机头朝下，导致飞行速度增加，直到飞机接近音速。 - 3
Lift yourself off the floor by carefully shifting your center of gravity. Press your hands into the floor and slowly begin to rock your weight back, off your feet and onto your hands. 双手扎实地按向地面，慢慢将重量向后放，重心落在双手上，抬起双脚。
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