The photographer became fascinated with aurorae after working at a rocket launch site in the far north of Norway for 25 years.
摄影师米卡森在挪威最北部的火箭发射场工作了25年，从此便爱上了极光。
For example, if the space department for a country issues a news release of a successful rocket launch, information will be readily available.
例如，如果一个国家的宇航部门发布了一次成功火箭发射的新闻稿，这样的信息非常容易拿到。
A rocket launch countdown. A common sound in the nineteen sixties. But this was not just another launch. It was the beginning of a historic event.
火箭发射倒计时，一个在二十世纪六十年代广为人知的声音，而这并不只是一次普通发射，而是一个具有历史意义的事件的开始。
NASA's goal in holding Tweetups is to provide an opportunity for individuals around the world to experience a rocket launch firsthand and share the event with their local communities.
NASA举办推特会的目的是使来自世界各地的人们有机会亲身了解火箭升空的情况，并与他们当地社区的人们分享这次活动的经历。
In this paper, an analysis of coupled vibration for the flexible spin rocket launch system with a supersonic exhaust jet is presented.
对于柔性旋转火箭发射系统，考虑高速燃气喷流作用下的系统耦合振动。
The method is concise and convenient for program, simulation and computation. It can be applied in many study fields, such as rocket launch dynamics, external ballistics, firing table.
该方法简洁方便，易于编制程序及模拟仿真，便于工程人员掌握，可用于火箭发射动力学、外弹道学及射表编制等方面研究，具有一定应用价值。
The method is concise and convenient for program, simulation and computation. It can be applied in many study fields, such as rocket launch dynamics, external ballistics, firing table.
该方法简洁方便，易于编制程序及模拟仿真，便于工程人员掌握，可用于火箭发射动力学、外弹道学及射表编制等方面研究，具有一定应用价值。
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