A normal line.

一个普通行。

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The error can be avoided by increasing the gear grinding allowance in length of common normal line to grind gear.

此误差可通过在公法线长度方向上加大留磨量，进行磨齿予以消除。

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The algebraic sum of the product of any point on a closed curve and the distance from this point's normal line to a fix point is zero.

任意闭合曲线上的点与该点法线到某定点距离的乘积，其代数和为零。

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So, Achilles is not doing anything sort of illegal or unconstitutional, but he's doing something that's really out of line from a normal point of view.

阿喀琉斯并没做什么不合法律的行为,但从我们的角度来看,他的行为的确过分了

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"Flights are operating as normal in line with WHO guidance, " a BA spokeswoman said.

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The line between normal and disordered is extraordinarily murky, as it always has been.

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Yet in return, Mordashov will be free to vote his shares in line with normal shareholder practice, and the standstill and lockup provisions will be eliminated.

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