一个关于船桨舵的测试labview系统，处于试验阶段，但是测试功能基本已经实现，大家看看。-A test on the rudder oars labview system, at an experimental stage, but the basic test function has been achieved, we look.

　　收音机的原理是把从天线接受到的高频信号，经检波还原成音频信号，送到扬声器变成音波把接收到的电台高频信号，用一个变频级电路将它转化为频率固定的中频信号，然后再对这个中频信号进行多级放大，再检波，低放。由于不同频率的无线电波用途较广、接受的-The principle is the radio frequency signal received from the antenna, the reduction by the detector into an audio signal to the

计算机控制显微镜电动平移台移动到精确位置-the computer can control the stage to move to an exact location.

手动绘制多边形。2015NI竞赛第二轮题目。-Manually draw polygons. 2015 NI contest second stage title