论文部分内容阅读
当今,电话来电显示业务已在我国城乡全面开通,大多数家庭选用多功能来电显示型电话机。然而,在使用电话来电显示器时有一笔不小的费用支出,就是说电池的消耗。正常的来电显示器采用二节7号电池供电,每换一次高容量的池电只能使用二个月左右,在更换电池时最容易丢失信息,不但浪?
Today, telephone caller ID service has been fully opened up in urban and rural areas in China, most families choose multi-function caller ID telephone. However, there is a small fee for using the caller ID display, which means that the battery is depleted. Normal caller ID with two batteries on the 7th, each for a high-capacity pool of electricity can only be used for about two months, when replacing the battery most likely to lose information, not only the waves?