多于一级的火箭称为多级火箭。
多级火箭是装有一台以上发动机的火箭。
多级火箭是装有一台以上发动机的火箭。
The liquids employed for rocket propulsion are called propergols.
该方法可以快速地进行多级火箭的飞行方案设计。
This approach is efficient for flight program design of multi-stage rockets.
提出了一种进行单级和多级火箭飞行方案设计的一般方法。
A generalized approach to flight program design for single and multi-stage rockets are presented.
发布会表示，级间环是多级火箭的关键组成部分，而用在中国现有火箭上的级间环以往都是分开制造，最后组装的。
The release said an interstage ring is a key component in a multistage rocket, and that those used on China's current rockets were made in sections before being assembled.
发布会表示，级间环是多级火箭的关键组成部分，而用在中国现有火箭上的级间环以往都是分开制造，最后组装的。
The release said an interstage ring is a key component in a multistage rocket, and that those used on China's current rockets were made in sections before being assembled.
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