The highfrequency gain of the regulator is limited to suppress the highfrequencyoscillation of the control signal while assigning the closed-loop poles.
在配置闭环极点的同时，对调节器的高频增益加以限制，以减弱控制信号的高频振荡。
2
The non-sinuous oscillation of the mold is used to reduce the mold friction force and stick type breakout, and to lower the oscillationfrequency for high speed casting.
Compared it with conventional billet, billet cast with highfrequency electromagnetic field, on which depth of surface oscillation mark was decreased remarkably, had a smooth surface.