rocket bipropellant双: two; twin; both; dual元: first; primary液体: liquid; liquor; fluid推进剂: propellant; propellent; prop ...双元液体推进剂火箭发动机: bipropellant rocket下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:双元液体推进剂，即可在微信中查询翻译
