The most efficient launch trajectory is due east from a launch site, which places the satellite into an orbital inclination equal to the latitude of the launch site.

最有效的发射轨道应该在发射地点的东边，使卫星轨道倾度与发射点纬度相等。

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Before the American satellites entered the satellite test building at the launch site, American security personnel had already checked the building many times.

——美方卫星进入发射中心的卫星测试厂房之前，美方安全人员已对厂房进行过多次安全检查。

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For example, to calibrate the electronic weighing equipment of the Xichang Satellite launch site, the calibration weights should have been prepared by the launch site.

例如，为了准确校准西昌卫星发射中心电子秤，须由发射中心配备校准砝码。

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On Earth Day, the artist and building designer Maya Lin will launch a Web site about the Earth's endangered plants and animals.

VOA: special.2010.04.21

For now I want to tell you a little bit about what open course ware is and also share with you some work experience with our first public launch of the site.

现在我想谈谈,什么是开放课程软件,并且与你分享一些,第一次开放这个网站的工作经验。

麻省理工公开课 - 媒体、教育、市场课程节选

We just launch the site three weeks ago.

我们三周前才开放了网站。

麻省理工公开课 - 媒体、教育、市场课程节选

Competitors have one aim, which is to travel as far as possible from the launch site.

BBC: David Hempleman-Adams' gas balloon 'flying well' in race

For Mrs Lea, the tension began as soon as she made it to the launch site.

BBC: Luxor balloon survivor Linda Lea remembers ordeal

Competitors for the Gordon Bennett Cup have a simple aim - to travel as far as possible from the launch site.

BBC: Wiltshire