在电话机市场上,各电子机器厂商都在以具有独特功能的新型机种相继参加竟争。经济实力最雄厚的厂家之一日本夏普公司也推出了三个电话机新机种。其中的高档机种“DA—500A,电话簿电话机”(44800日元),能把一百个电话用户的号码连同其用户姓名存储在电话机中,并可依据字头的检索表示与对方通话。当 In the telephone market, all electronic machinery manufacturers are competing one after another with new models with unique functions. Japan’s Sharp, one of the most powerful manufacturers, has also introduced three new phone models. Among them, the premium model “DA-500A, telephone directory” (44,800 yen) can store the telephone number of one hundred telephone users along with their user name in the telephone, Talk to each other. when