激光瞄准安装在鹈鹕下面的光伏电池，给直升机的电池充电，使它在空中飞行了12小时27分钟。
The laser at photovoltaic cells mounted on the pelican's underside, charged the chopper's battery, keeping it aloft for 12 hours and 27 minutes.
军事研究员们正在试图将声学枪响探测器与一条耀眼的激光相结合，以惊吓将美国直升机作为目标的射手。
Military researchers are looking to combine an acoustic gunshot detector with a dazzling laser that will startle shooters who take aim at American helos.
第二枚火箭由在发射平台附近飞行的直升机提供激光指示。
The second launch was guided by a laser designator in a second helicopter flying near the launch platform.
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