Newton's second law can be expressed as a differential equation.
牛顿第二定律可表达成微分方程。
In this paper differential equations of grain moving in the deposition chamber were developed based on Newton's Second Law.
本文根据牛顿第二定律，建立了惯性分离室内包含多因素的颗粒运动微分方程序。
The principle of Common and Differential Liability is an important one of International Environmental law .
共同责任原则是国际环境法上的一项重要的原则。
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