launch window

基本解釋

For an Aug. 5 liftoff, the launch window opens at 8:34 a.m. PDT (11:34 a.m.
對於5號的發(fā)射而言，發(fā)射窗口在太平洋時間8點34分開始，一直到9點43分結束。
[font=Verdana]In addition, an air launch promises a lot more scope to find a good “l(fā)aunch window” to get the spacecraft into orbit.
此外，空基發(fā)射可以爲尋找“發(fā)射窗口”將航天器送入軌道，提供更多的機會。
Introduce the reference frame and time system used in orbit design particularly. Analyzed the orbit characteristic of two-body problem and launch window.
詳細介紹了用於軌道設計的坐標系統(tǒng)和時間系統(tǒng)，分析了二躰軌道特性和發(fā)射窗口的基本特性。

The launch window -- five-day launch window begins early tomorrow morning East Coast time.
WHITEHOUSE: Press Briefing
At this point, I expect DriveClub to be ready for the launch window for PS4 this holiday.
FORBES: Sony Exec Confirms Gran Turismo 6 Coming To PlayStation 3
What is out of the ordinary, however, is that they usually show up fairly close to a launch window.
FORBES: Links 2 Jan: Apple's iPhone 6 And iOS7 Already Showing Up

the limited period during which a spacecraft can be launched on a particular mission