名词
中文翻译：启动器
同义词：
['launcher', "propulsion device例句：1. The rocket's booter system is responsible forlaunching the spacecraft into orbit.（火箭的助推系统负责将航天器送入轨道。）"]
例句：
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1. The rocket's booter system is responsible forlaunching the spacecraft into orbit.
火箭的助推系统负责将航天器送入轨道。
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2.The new engine has a booter thatcan increase its power output by up to30%.
这款新发动机有一个助推器，其功率输出可提高高达30%。
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3. The scientist used a booter to help him overcome his fear ofheights.
这位科学家使用了一个助推器来帮助他克服对高处的恐惧。