instantaneous changes

System detects output voltage and output current of the PV array, compares conductance increment of photovoltaic array and instantaneous conductance, then changes the duty cycle with variable step length, achieves maximum power point tracking fast.

系统检测光伏阵列的输出电压和输出电流，并通过比较光伏阵列的电导增量和瞬间电导变步长改变占空比，实现对最大功率点的快速跟踪。

When the two cars have overtaking or crossing process, the role of the lateral force can not be ignored. Instantaneous aerodynamic changes often lead to changes in running track, or even an accident.

当复数车辆在道路上行驶时，侧向力的作用更是不可忽视，瞬时的气动力变化经常会引起行驶轨迹的变化，在某些严重的情况下有可能引起交通事故。

The solar altitude decided the changes of instantaneous extinction coefficient and leaf area index effected the changes of the daily extinction coefficient.

太阳高度角决定了消光系数的日变化过程，而生长季内消光系数的变化主要由叶面积指数的不断变化而引起；

Instantaneous pressure variations and spikes are due to large instantaneous changes in melt viscosity.

瞬间的压力变化及峰值出现是由熔融粘度瞬间变化导致的.