back-pressure well testing
(常规)回压试井
Sales Champion in 2005 at Lexus
雷克萨斯2005年销量冠军
invincible champion
不可战胜的冠军
Product Champion
产品推动者产品牵头人
To act as a champion of justice
持危扶倾
back-lighted plotting surface
(绘图机上)反光绘图面
champion the cause of the weak
打抱不平