Police arrived by helicopter, and the boy pointed the green laser at the chopper as it flew in, Dougherty said.
军士还谈到，警方动用了直升机，而该少年在直升机降落时仍在用那个绿色激光灯指指点点。
Police arrived by helicopter, and the boy pointed the green laser at the chopper as it flew in, Dougherty said. The boy was arrested and held in juvenile custody.
军士还谈到，警方动用了直升机，而该少年在直升机降落时仍在用那个绿色激光灯指指点点。依照少年法，警方拘捕了他。
To land a chopper safely in the dirt requires sophisticated laser scanners to detect obstacles hidden by dust thrown up by the downdraught of the rotors.
为了使直升机在尘土中安全地着陆需要复杂的激光扫描仪去探测被旋翼的倒灌气流扬起的灰尘所隐藏的障碍物。
Chopper is an important part of infrared detecting system and laser radar; the transfer function is used to characterize the optical transfer characteristics of chopper.
斩波器是红外探测系统、激光雷达系统等的重要组成器件，传递函数可以用来描述斩波器的光学传递特性。
To land a chopper safely in the dirt requires sophisticated laser scanners to detect obstacles hidden by dust thrown up by the down draught of the rotors.
为了使直升机在尘土中安全地着陆需要复杂的激光扫描仪去探测被旋翼的倒灌气流扬起的灰尘所隐藏的障碍物。
The characteristic of laser pulse, damage thresholds of chopper and synchronization of TTL trigger are evaluated by theoretical analysis and experimental measurement.
从理论和实验角度研究了调制脉冲特性、调制器承受激光辐照能力及门控触发电平的同步性。
The characteristic of laser pulse, damage thresholds of chopper and synchronization of TTL trigger are evaluated by theoretical analysis and experimental measurement.
从理论和实验角度研究了调制脉冲特性、调制器承受激光辐照能力及门控触发电平的同步性。
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