短语词组短语hidden -line detection method 消除隐藏线Hidden -line 线消隐;隐线着色hidden parting line 内藏式分型线hidden surface line 虚线automatic hidden -line removal 自动消除隐藏线hidden line elimination 隐藏线消除;翻译blue hidden line 蓝色隐藏线;蓝色线藏;蓝色的隐藏的线 返回 hidden line