laws of reflection and refraction 反射和折射定律的
The preconditions, additional conditions and reflection laws of variational principle are the complete elementary equations in elasticity.
弹性力学变分原理的先决条件、补充条件和反映的规律一起正是弹性力学全部基本方程。
The laws of Tang dynasty strictly stipulated the outlay of market, using the penal code to administrate, which was the reflection of the favour of agriculture over commercials.
唐律对市场的设置有严格的限制，用严厉的刑事法规对市场进行管理，这是中国古代传统的重农抑商政策在唐律中的反映。
Truth is the correct reflection of people's knowledge about the objective world and its laws.
真理是人们对客观世界及其规律的正确反映。
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