短語詞組短語tracing g machine 描圖機;電子軌跡描繪器circuit t tracing machine 電路繪圖機circuit tracing machine [計][電子]電路繪圖機;電路追蹤機;電路跟蹤描圖機photoelectric tracing flame cutting machine 光電跟蹤氣割機photo -electric tracing and shaping machine 光電跟蹤坯機 返回 tracing machine