正的副翼偏转角产生绕X轴的负方向力矩。
Positive aileron deflection produces an anti - clockwise moment about the X axis.
加速度在这个方向上，我规定它为正方向“，这个为负方向。”
Acceleration is in this direction and I will call this "plus" and I will call this "minus."
然而，你还失去了内在价值，如果股票期权的价格动向负方向。
However, you still lose the intrinsic value of option if the stock price moves to the negative direction.
在无限远处，没有储存的势能，并且它向负方向减少，当距离超过R时。
At infinity, there's no stored potential energy, and it drops off more and more negative as one over r.
当AC电压下降到零，并开始增加在负方向上，这个SCR仍然关闭。
When the AC voltage drops to zero and begins to increase in the negative direction, the SCR remains turned off.
影响的基本机理是锥面的边界层在转捩时形成了负方向的诱导法向力。
The mechanism of the effect is that the transition induced normal force arise when the boundary layer transition appear on the slender cone.
,在y的负方向,那么也有一个常力,在y的正方向,这两个力互相抵消。
in the minus y direction and there is a normal force in the plus y direction and these two exactly cancel each other.
得到m1gcosα,而x方向上-,这里是x负方向-,大小是m1gsinα
So this one equals m1 g cosine alpha - and this one, the x component-- which is in the minus x direction now-- equals m1 g sine alpha.
我把向黑板里面的，这个力矩，认为是正方向，而向黑板之外的，那个力矩，我认为是负方向。
And I call the torque that is in the blackboard, I call that my positive direction, and the torque that is out of the blackboard, I give that a negative direction.
腐蚀电位-时间结果表明，两种涂层的自腐蚀电位都比基体的更正，都能起到屏蔽作用保护基体，浸泡中电位向负方向移动说明活化腐蚀过程在继续。
The results indicated that with the decreasing of the porosity, the self-corrosion potential of the coatings shifted from Ecorr of Fe to Ecorr of Ni-P.
腐蚀电位-时间结果表明，两种涂层的自腐蚀电位都比基体的更正，都能起到屏蔽作用保护基体，浸泡中电位向负方向移动说明活化腐蚀过程在继续。
The results indicated that with the decreasing of the porosity, the self-corrosion potential of the coatings shifted from Ecorr of Fe to Ecorr of Ni-P.
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