Secondly, Aiming at classical mathematics model of Multi-machine System, state equation and transient energy function are putted forward in the center of angle.

针对多机系统的经典数学模型，给出多机系统在角度中心下的状态空间方程及其暂态能量函数。

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This paper puts forward one kind of method of identification of parameter nearby the resonant region, and gives equation of damping.

本文提出了一种在共振区域附近的参数识别方法，给出了阻尼表达式。

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Forward electromagnetic scattering by buried objects is computed with the integral equation method and efficient algorithm for half-space dyadic Green's functions.

利用积分方程方法以及半空间并矢格林函数的快速算法对埋地目标体矢量电磁散射进行正演计算。

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Some forward-looking cities are leading on solving the energy-nexus equation, some out of necessity.

FORBES: On World Water Day: A Call for Innovation

And we hope and look forward to the time when Republicans acknowledge that revenues not only have to be part of the equation, but that rates on top earners have to go up as part of the revenue equation.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,