快捷鍵

这是我将上次发布的记时器模拟器进行改进，主要是界面和功能上作了大大改进， 外型十分逼真，和体育老师上课用的一模一样！-This is the last issue I will remember when the device simulator improvements, is the main interface and functions were greatly improved, appearance is very realistic, and sports teacher in the class of the same!

说明：  建立水声信道的射线模型在工程应用上有重要的意义。射线声学是把声波的 传播看作是一束无数条垂直于等相位面的射线的传播，每一条射线与等相位面相 垂直，称为声线。声线途经的距离代表波传播的路程，声线经历的时问为波传播 的时间。声线束所携带的能量即为波传播的声能量。与几何光学相似，射线声学 的描述方法给人直观的感觉，在一定的条件下，射线声学的数学运算也比较简捷， 由射线理论给出的声线图可以给声场以直观、形象的理解。 本模型可以准确的衡量声波在海洋中传播路径(Establishing ray model of underwater acoustic channel is of great significance in engineering application. X-ray acoustics refers to sound waves. Propagation is regarded as the propagation of a bunch of innumerable rays perpendicular to the isophase plane, each ray being in phase with the isophase plane. Vertical, called sound line. The distance through which the sound line Travels represents the distance of the wave propagation, and the time that the sound line experiences is the wave propagation. The time. The energy carried by the sound beam is the sound energy of wave propagation. Like geometric optics, ray acoustics The descriptive method gives people an intuitive feeling. Under certain conditions, the mathematical operation of ray acoustics is relatively simple. The sonogram given by ray theory can give an intuitive and visual understanding of the sound field.Accurate measurement of sound wave propagation in the ocean)

HTML5 Canvas游戏开发实战 pdf 书籍(HTML5 Canvas game development real battle HTML5 pdf books)

矢量控制的永磁同步电机Simulink仿真模型，亲测可运行，多个模型。(Vector controlled permanent magnet synchronous motor Simulink simulation model, pro test can run, multiple models.)

生成多孔介质的源代码，对初学者有一定的帮助.(Source code for generating porous media and it has some help for beginners.)

说明：  电力系统经济调度MATLAB最优化计算20例(20 cases of MATLAB optimization calculation for power system economic dispatch)

两侧可控制的JS左右图片滚动特效代码下载（图片走马灯特效），水平左右风格的图片滚动，两侧的红色按钮可控制图片向右、向左滚动，整体效果平滑自然，代码简洁，如演示截图所示。

说明：  Snoop网络封包分析工具，本控件基于WinPcap，所以必须先安装WinPcap(Snoop Network Packet Analysis Tool,This control is based on WinPcap, so you must install WinPcap first.There are examples to illustrate.)

说明：  媒体播放器 点击播放 播放对应网站媒体在线视频(power buider media player)

说明：  对基模高斯光束经过焦距为10cm的柱透镜后的光斑变化做了模拟(The spot change of fundamental mode Gauss beam passing through a cylindrical lens with focal length of 10 cm is simulated.)