主导－主体教学模式
guide-subject pattern of teaching
主风向的确定
ascertaining main wind-direction
双向导向定位结构
Bi-directional leading and locating structure
电接风向风速自记纸
contact anemometer self-recording image
风向风速测量
wind direction and speed survey
风向风速传感器
wind direction and wind speed sensor