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
横风向风力
across-wind fluctuating force
径向风风速风向
Radial wind speed and direction
全天候风向风速计
all-weather wind vane and anenometer
all-weather wind vane and anemometer