像其他许多与直升机相关的事情一样，浆叶自旋也是一个必须熟练掌握的技能。
现在的推特报道说今晚直升机轰炸的黎波里，有待证实。
1·Military researchers are looking to combine an acoustic gunshot detector with a dazzling laser that will startle shooters who take aim at American helos.
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。
2·The VH-71 program includes several test aircraft, five Increment 1 lesser-equipped but operational helicopters, and 23 Increment 2 helos that would have had the full range of options.
VH - 71计划包括多个测试飞机，5架Increment 1配置较低装备的业务直升机和23架Increment 2直升机，将是其充分的选择范围。