1. Chapter 5 discusses on launch window. 第五章讨论了的窗口选择问题。
2. The launch window remains open for one hour and 43 minutes. 发射窗口有一小时43分钟。
3. For an Aug. 5 liftoff, the launch window opens at 8:34 a.m. PDT 11:34 a.m. 对于5号的发射而言,发射窗口在太平洋时间8点34分开始,一直到9点43分结束。
4. My next launch window for a European trip isn't until school is over in June. 直到六月学校放假才是我下次到欧旅行的有利时机。
5. In addition, an air launch promises a lot more scope to find a good "launch window" to get the spacecraft into orbit. 此外,空基发射可以为寻找“发射窗口”将航天器送入轨道,提供更多的机会。