例句：
When one Ranger fell, another would take his place.
一个突击队员倒下了，另一个又冲上来。
Accuracy Analysis of Precise Ranger in Consideration of System Error
顾及系统误差的精密测距仪之精度分析
Practical Precise Ranger Based on the Laser with Two Longitudinal Modes
实用双纵模激光精密测距仪
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