wind-tunnel balance

Symmetric instability of non thermal wind balance basic flow

非热成风平衡基流的对称不稳定

A gust of wind knocked him off balance and he fell face down in the mud.

一阵大风刮得他失去平衡，脸朝下摔在泥里。

A null-balance system is provided by balancing the magnetic forces by electrostatic forces. Sensorless control of direct-driven wind power PMSG

零位平衡系统是靠静电力来平衡磁力而造成的。直驱型永磁同步风力发电机无传感器控制

In this review we summarize the recent advances in coronal physics. Some results of investigations are discussed such as the coronal structures, energy balance, theory of coronal heating mechanisms and solar wind streams.

本文总结了日冕物理研究的最新进展，讨论了有关日冕的结构，能量平衡，日冕加热机制的理论以及太阳风等的某些研究成果。

We analyze the system from several aspect: run with union fans, merit, natural wind pressure, angle-link structure, reliability and colligate state based on balance graph and so on.

包括风机联合运转分析、功耗分析、自然风压分析、角联结构分析、可靠性分析以及基于平衡图的综合状态分析等多个方面。