The angular deviation, as observed from the sun, of a planet from its perihelion .
近点距离， 近点角从太阳观察到的行星距近日点的角度偏差。
Angular deviation from a vertical or horizontal plane or surface; an inclination or a slope.
在垂直面需要起模斜度以便模样从铸型中拔出。
The maintained activity of the neuron during fixations is proportional to the angular deviation of the eye in orbit.
在眼球固定与眼眶中眼球的角度偏差成比例期间，神经元的活动就维持不变。
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