With the improvement of Marine power supply network and high requirement of the selective protection, longitudinal differential protection has more practical meaning in Marine power system.

随着船舶供电网络结构复杂程度和选择性保护要求的提高，将纵差动保护应用于船舶电力系统有着越来越大的实际意义。

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The inflexion is the second differential of the speed curve and the physical meaning is the same to the jerk, so the jerk is introduced into the control model of anti-skid system.

拐点是制动曲线的三阶导数，它的物理意义和冲动不谋而合，这也是本文在防滑器控制模型中引入冲动物理量的原因之一。

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Moreover, the derived equation, and the stability theory of differential equations to explain the actual meaning of equations.

再者，求出方程的解，并用微分方程解的不变性理论诠释方程解的实践意义。

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It recommends building an international consensus on the differential pricing of patented pharmaceuticals, meaning that poor countries would have access to expensive drugs at the cost of manufacture, rather than paying the far higher rates charged in rich countries.

ECONOMIST: Patently troublesome

The differential at this scale is nominal, meaning that Google is doing a good job at closing the app download gap.

FORBES: Is Google the New 'Think Different?'

The tax differential between low-tax and high-tax states is widening, meaning that a relocation from high-tax California or Ohio, to no-income tax Texas or Tennessee, is all the more financially profitable both in terms of lower tax bills and more job opportunities.

FORBES: Capital Goes Where It's Welcome