neutral line meaning in Chinese

中和线
中和轴线
中线性
中性线，中立线
主航道中心线

The numerical method to solve the equation for spatial amplification theory is described in detail . deduced first - order system equations from spatial instability theory and its eigenvalue problem are solved and neutral lines varied with mach numbers are given
运用稳定性理论的空间放大理论，建立稳定性方程，得到一个六元一阶方程组，然后求解该一阶系统，计算并得到不同马赫数下的中性稳定曲线，基于此得到不同马赫数下流场的临界失稳点和稳定区域。
From the perspective of minimum transmission losses , an instantaneous reactive power theory for systems with any number of phases and with or without neutral line is developed . under the new definition , each quantity has its own physical meaning , and the zero sequence current can be decomposed into active and reactive components . furthermore , a generalized compensation method for zero sequence current is developed
从输电损耗最小的角度出发，提出了任意相无中性线或有中性线系统的瞬时无功功率理论，在新的理论下，每个量都有清晰的物理意义，且能分解出零序电流的有功分量和无功分量，并给出了通用的零序电流补偿方法，揭示了瞬时无功功率理论与传统平均意义下的无功功率理论的联系及本质区别，从而为研究hvdc - vsc及各种facts装置的无功功率控制奠定了理论基础。