hydrogen propeller超: exceed; surpass; overtake冷: cold推进剂: propellant; propellent; prop ...冷推进剂: cool propeller推进剂: propellant; propellent; propulser; propulsive agent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:超冷推进剂,即可在微信中查询翻译