三级档变速器

merit student; three good student(good in study, attitude and health)

semi-controlled three-phase bridge rectifier circuit【电】

three-piece

Three Agents Emergency Pill

three-way tube

three direct links (mail, air and shipping services and trade) and bilateral exchanges

Three Agents Little White Powder

3-D picture【电影】;stereoscopic motion picture【电影】;three-dimensional film【电影】