sustainer
🇬🇧/səˈsteɪnə(r)/ 🇺🇸/səˈsteɪnər/ 14a rocket engine that maintains the velocity of a space vehicle after the booster has been jettisoned 主火箭发动机
noun [专属名词]支持者，维持者；主发动机；支撑的人物
There is no room for chance or luck if you believe God is the Creator and Sustainer.
如果你相信上帝是造物主和维系者，那就没有机会论的容身之处。
单词造句:
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- You could not be here without them. Your beloved spirit is the sweet sustainer of your life. 没有它们你不能达到现在的位置，你所崇尚的精神是你人生的坚强支柱。
- The tentative design of constant altitude flight solid rocket composed of the sustainer the booster and its simple control method is presented. 介绍了主发动机加助推器和简易控制方法实现固体火箭等高飞行的设计方案。