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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.We continue the above three – phase parabola detection procedure until all t...
a leading protagonist of the conservation movement资源保护运动的急先锋She was herself a vehement protagonist of sexual equality.她本人就热心提倡男女平等.The writer characterized the protagonist in his latest novel as lazy and selfish.作家把他最近一部...