Middle-classness is a norm, an ideal and a default setting.

中产阶级是一种规则，是一种理想的默认设置。

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An optimized calculating method for inertia force balance in ideal mechanism takes the interval dynamics norm as the goal function and simulates the effect of the interval in the motion join.

以间隙动力学指标作为目标函数，以理想机构惯性力平衡的优化计算，模拟反映了运动副间隙对四杆机构动力特性的影响。

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The survey results ultimately reveal that, as an ideal, gender equality is becoming the norm for most of the world.

FORBES: Equal Rights, Yes, But Men Still More Equal