使用WVR能精确测定对流层时延误差。
Troposphere delay error could be accurately determined using WVR.
从而为精确测定炮口速度提供了一定的理论基础。
A certainty basic foundation for precision determine the cannon ostium velocity are offered.
在激光侦察告警等应用领域需要精确测定入射激光的方向。
It is necessary to measure laser orientation in some applications such as laser reconnaissance and alarm.
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