zero angle 零角 ; 零角度
zero-lift angle [航] 零升力迎角 ; 零升力攻角
zero contact angle 零接触角
angle of zero lift 零升力角
zero angle cut 零度截断法
non-zero contact angle 非零接触角
zero lift angle of attack 零升力攻角
zero angle lift coefficient 零迎角的升力系数
zero swashplate angle 斜盘零位角
v0 And there is an angle between ; the position vector and v zero; 0 I call that phi zero.
在方位向量和,之间，有一个夹角;,我们叫它φ
The Angle increases, 2 so in our case from t1 to t2 0 the average acceleration is larger than zero Look at the Angle.
角度在时刻t1到t2的过程中，增加了2，故平均加速度大于，看看这个角度。
If you look at a clock and the time is 3:15, what is the Angle between the hour and the minute hands? (the answer to this is not zero!)
如果你看表的时间是3：15，那么时针和分针所成的角度是多少(答案不是0…)！
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