Combined with the lab experiment, the numerical model is applied to wave-induced nearshore currents on a fixed tri-cuspate beach.
在此基础上进一步结合实验模型，这个数字模型被用于分析正弦地形上的近岸流在波浪作用下的分布情况。
2
Pulse width Modulation device is a circuit which can produce square wave signal with fixed period and adjustable pulse duration ratio (pulse width).
脉宽调制器是一种能够产生周期固定而占空比(脉宽)可调的方波信号的电路。
3
The wave form of flame standing wave produced by gas using sound field is studied, it is found that flame appears at wave nodes (fixed reflection end), and hardly appears at wave abdomen.