high energy light weight propellant high energy light-weight propellant
Related Translations:
轻重: 1.(重量大小) weight 短语和例子轻重相等 equal in weight;2.(程度的深浅;事情的主次)degree of seriousness;relative importance 短语和例子无足轻重 be of little moment; a matter of no consequence3.(适当的程度) propriety 短语和例子做事不知轻重