echo tracing meaning in English
回声规迹
Examples
- An observatory personnel at work . displayed on a monochrome cathode ray tube display , the radar image had to viewed inside a dark room and radar echoes traced on a piece of transparent plastic for use in weather forecasting
由于当时是使用单色阴极射线管crt显示雷达图像，所以工作人员需处身于黑房中观看图像，并在透明胶片上描绘出雷达回波，以作天气预测之用。 - An observatory personnel at work . displayed on a monochrome cathode ray tube ( crt ) display , the radar image had to viewed inside a dark room and radar echoes traced on a piece of transparent plastic for use in weather forecasting
由于当时是使用单色阴极射线管( crt )显示雷达图像，所以工作人员需处身于黑房中观看图像，并在透明胶片上描绘出雷达回波，以作天气预测之用。