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双向寻呼机目前在美国已经相当普及。不过,真正具有交互式文字通信功能的并不多,大量应用的是一些所谓“1.5代”的双向寻呼机。
Two-way pager is currently very popular in the United States. However, the real interactive text messaging capabilities are not many, a large number of applications are some so-called “1.5 generation” two-way pagers.