The controller to be designed is assumed to have state feedback gain variations. Design methods are presented in terms of linear matrix inequalities (LMIs).

假定所要设计的控制器存在状态反馈增益变化，设计方法是以线性矩阵不等式组的形式给出的。

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It is obtained by numerical calculation that the mode spot size at the mirrors in a resonator with arbitrary configuration is always a finite value as long as radial gain variations are present.

只要出现径向增益变化，通过数值计算得到任意结构的谐振腔腔镜处的光斑尺寸总是有限值。

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Farmers can lose rather than gain if incomes fluctuate because of variations in crop yields and outputs-stable prices can then destabilize incomes.

农作物产量和产值的变化如果引致收入波动，这对农民来说就可能是有害无益，因为稳定了价格可能稳定不了收入。

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There are of course a number of ways for leaders to gain loyalty that involve variations around compensating your employees, running a sound ship and producing strong results for your organization.

FORBES: The Simplest Way For Leaders To Gain Lasting Loyalty