短语词组短语nc -lathe 数控机床NC vertical lathe 数控立式车床nc machine lathe 数控车床NC Alteration of lathe 车床数控改造economic nc lathe 经济型数控车床On The Nc Lathe 对数控车床economical NC lathe 经济型数控车床TK40A NC lathe TK40A 数控车床precision nc lathe 精密数控车床 返回 nc lathe