预警时间 meaning in English

advanced warning time
early-warning time
warning length

First , researchers found that violations dropped by 36 percent after yellow lights were extended to give drivers more warning that the light was about to turn red
首先，研究人员发现，在延长黄灯时间以便给驾驶更多注意灯号即将转红的预警时间后，闯红灯违规事件减少了百分之三十六。
Aimmed to retard the response of ballistic missile defence system , the wavy trajectory with three crests is designed in this thesis to replace traditional parabola one . this kind of trajectory make anti - defence system have lots of difficulties to detect and compute the track and destination of ballistic missiles before reentry . so , applying the wavy trajectory can greatly improve the anti - defence ability of ballistic missiles
从延缓导弹防御系统的早期预警时间着手，将传统弹道导弹的抛物线弹道中段设计成有多个波峰的跳跃式弹道，使得探测系统在导弹再入大气层之前，很难准确探测和计算导弹的落点，使得防御系统防不胜防，从而大大地提高了弹道导弹的突防能力。