Virgin Galactic's space tourism rocket SpaceShipTwo achieved its first solo glide flight yesterday, marking another step in the company's eventual plans to fly paying passengers.
10月10日，维珍银河公司执行太空旅游任务的火箭助推太空飞船二号完成了首次单独滑翔飞行，朝最终携带付费乘客旅行又跨出了一大步。
The liner is a polymeric elastomer coating between propellant and insulation layer or case. The liner-forming is a special step in production of solid rocket motor.
衬层是推进剂与绝热层或壳体之间的高分子弹性体涂层，衬层成型是固体火箭发动机生产中的一种特种工序。
The liner is a polymeric elastomer coating between propellant and insulation layer or case. The liner-forming is a special step in production of solid rocket motor.
衬层是推进剂与绝热层或壳体之间的高分子弹性体涂层，衬层成型是固体火箭发动机生产中的一种特种工序。
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