说明：  电子时钟功能与使用 该电子钟由于使用12MHZ晶振，故而能获得较高精度的时间。它能同时显小时，分钟和秒。设有两个按键：A和B键。A键用于选择要校正的目标，是小时，分钟还是秒，按第一下时，选择秒，按第二下则选分钟，第三下则选小时，第四下则退出校时，第五下又选秒，如此循环，可选择校时或退出校时。B键每按一次，所选对象就会加1，比如，已选择分钟，那么每按一下此键，分钟数目就会加上1。
(Electronic clock function and the use of the bell as a result of the use of e-12MHZ crystal, they are able to obtain a higher accuracy of the time. At the same time it can significantly hours, minutes and seconds. There are two buttons: A and B keys. A key is used to select the goal of correction is hours, minutes or seconds, the next by the first, the choice of seconds, according to the election under the second minute, the third hour of the election, has withdrawn from school under the fourth, the fifth another election under the second, and so the cycle of school or may choose to withdraw from school. B button every time, the selected object will be plus 1, for example, have chosen to minutes, then each click on this button will add the number of 1 minute.)