Light - vehicle headlamp reflector is constituted of parabolas to 3 - D surface, which is a deep drawing workpiece.轻型车前照灯反光镜是由抛物曲线构成的 三维 曲面深拉深件.The club was constituted to cater the young's taste.这个俱乐部是为满足年轻人品位而设立的...
The waters of the tropics are invitingly clear.热带水域清澈诱人。The sultry weather in the tropics encourages tourists to lead an indolent life.热带闷热的气候使得游客只能过懒散的生活.In the tropics plants grow to huge proportions.在热带，植物会长得非常高大。Hist...