The measuring device is characterized in that the measuringsizerange is large, the operation is simple, the measuring accuracy is high, and the reading is direct-viewing, flexible and convenient.
该量具具有测量尺寸范围较大,操作简便, 测量精度高,读数直观,灵活方便等特点。
2
A novel Laser screen velocity measuring method with large effective screen area is introduced for some special velocity measuring occasions like wide spreading range or big-size flying objects.