在数字式交鄄交变频器中，一般采用直线方程近似三角方程的方法实现余弦交点法求触发角。

An algorithm to realize the cosine wave-crossing method in digital cycloconverter is performed by using the linear equation to approximate trigonometric equation.

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本文用微分几何理论推导出纤维缠绕复合材料压力容器的非测地线缠绕轨迹、包角方程及绕丝头运动方程。

Non geodesic trajectory mandrel rotation and payout eye motion equations for fiber reinforced composite pressure vessels are derivated by theory of differential geometry.

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对于爆轰驱动平板问题，当理论近似或实验拟合给出某些物理量后，可以借助抛射角方程导出适用的抛射角公式。

For the problem of detonation driving plate, if some quantities could be gained from theories or experiments, we can deduce the projection Angle formula from the projection Angle equation.

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His idea was, the formula written for the opposite one will have the opposite angle; That turns out to be the correct answer.

他的方法是,反过来的方程,以相反的角来表示,那就能推出正确的答案了

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The more important thing that I want you to notice when you're looking at this wave equation for a 1 s h atom, is the fact that if you look at the angular component of the wave function, you'll notice that it's a constant.

我要你们注意的,更重要的一点是,当你们看到,这个氢原子1s轨道方程的时候，如果你们看,波函数，的角向部分，你们会发现它是一个常数。

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