第九届国际轮对会议着重于改进铁路系统中最易磨损的零部件。车轮和钢轨就是铁路系统中最易磨损的零部件。这是88年9月份于特蒙利尔召开的第九届国际轮对会议上发言者之一这样说的。他或许应该再添加上闸瓦,这样,就可以使他的说法更精确。他可能还应该指出会议上曾经深入讨论的许多有关论题以强调他关于车轮和钢轨磨损的发言。 The 9th International Conference on Wheels focuses on improving the most easily worn parts of the railway system. Wheels and rails are the most worn parts of the rail system. This is one of the speakers at the Ninth International Roundtable Conference held in Turin in September 88. He may have to add a brake shoe so that he can make his statement more precise. He may also point out many of the topics that have been discussed in depth at the conference in order to emphasize his statement on wheel and rail wear.