The development of non-sinusoidal oscillation of mould expands the basic parameters of mould oscillation, and surmounts the limit of oscillating parameters range for sinusoidal oscillation .
结晶器非正弦振动形式增加结晶器振动的基本参数，突破结晶器正弦振动参数的取值限度。
2
This paper presents an approximate analytic method which determines the characteristics of aircraft lateral-directional limit cycle oscillation induced by aerodynamic hysteresis.
本文给出近似解析公式，确定空气动力迟滞引起的飞机横航向极限环振荡特性。
3
This paper presents the oscillation field theorems of L′Hospital′s limit.