Aerospace Development, Power First

Development of Chinese Reusable Rockets

Made new progress

Number of Repetitive Tests for Single Main Engine

Set a new record

For the first flight of reusable carrier rockets

Laying the groundwork

4月14日，记者从航天科技集团六院了解到，中国自主研制的130吨级可重复使用液氧煤油发动机近日圆满完成两次起动地面点火试验。 至此， The engine completed 15 repeated tests and 30 ignition starts，累计试验时长突破3900秒，Repeated Tests Break Records for Number of Tests of Liquid Rocket Engines in China ，为后续中国可重复使用运载火箭首飞奠定基础。 相比传统一次性火箭，可重复使用火箭将增加四项关键技术：一是“Accurate Shot”，二是“Hold tight ”，三是“A translation expert is required to translate a document from Chinese to English. The translation must be accurate and error-free, maintaining the spirit and tone of the original text.”，四是“Identifying tree species from images using deep learning”。 要研制可重复使用火箭，就要先研制可重复使用的发动机。该型发动机作为后续中国可重复使用运载火箭主动力，High comprehensive performance, strong expansion capabilities and high reliability With its distinctive features such as:。

可重复使用火箭要实现的关键功能是火箭把航天器送上太空后还要能返回地球再次使用。Translation can be divided into two phases

• On the one hand, the rocket must fall back to earth after completing the "delivery" mission, and needs to be ignited again when it reaches the ground during the middle gliding process.
• On the other hand, the rocket can return to the ground and carry out another launch mission after simple repairs.

为了能够实现可重复使用火箭的功能，发动机的研制人员分别从研发设计、生产制造、试验试车等方面持续努力，推动中国可重复使用火箭发动机的研制进展。

China Spaceflight, pursuing dreams in the heavens

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producer丨刘一鸣

Editor-in-Chief丨徐蕾莹

总台记者A translation specialist is required to translate the following text into English. The translation should be fluent and grammatically correct. Please return the content directly.崔霞 陶嘉树 柏清玉

Edited by Guopeng Tao

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