third leg第三回合; 下一回合thirdnum.第三；三分之一adj.第三的；三分之一的Third aberration theory三级像差理论third party information第三者资料third ventricular floor三脑室底部third longitudinal vein第三纵脉Third-Grade Navigator三级领航员third order rim product三阶接收互调产物third party' s softwareThird Battle of Damascus第三次大马士革之战(公元976)third-order dispersion三阶色散third-grade prevention三级防范