人的拇指规则就是限制到一个程度的扭转变形的长度相等的20倍。

One rule of thumb is to restrict the torsional deflection to one degree in a length equal to 20 diameters.

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这项调查的结论是，人工流产在国家发生率大致相等的地方是合法的，在有高度限制的。

The survey concluded that abortion occurs at roughly equal rates in countries where it is legal and where it is highly restricted.

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记住，开式差速器总是运用于两轮转矩相等的情况下，最大扭矩受限于最大防滑系数的限制。

Remember that the open differential always applies the same torque to both wheels, and the maximum amount of torque is limited to the greatest amount that will not make the wheels slip.

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