Secondary Ranging Test

• 辅助测距试验

Secondary Ranging Test的用法和样例：

例句

1. The word radarmeans radio detection and ranging.
   雷达这个词的意思是指无线电探测和测距。
2. The ranging precision of this method is high, and it has better universalism.
   此种方法原理简单，便于实现，测距精度高，具备较好的通用性。