电动计时的普及推广

Considerations of some problems in popularizing slit video timer

简介了电动计时仪的原理及优点,描述了国内电动计时的应用现状,基层推广使用电动计时的必要性和存在的问题以及对策。

The principle and advantages of Slit Video Timer are given in this paper briefly .The paper also describes the application of the Slit Video Timer in our country currently. It is necessary popularizing the Sh't Video Timer. Some problems in popularization of Slit Video Timer and the way it be solved are discussed.