double-based propellant倍: times基: base; foundation推进剂: propellant; propellent; prop ...单基推进剂: simple-base propeller; single-base propellants炔基推进剂: acetylenic propeller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:倍基推进剂，即可在微信中查询翻译
