Chaplin and a fly　　One afternoon when Charlie Chaplin(卓别林)was sitting together with his friends talking，a fly flew i......

The ion chamber is a frequently used radiate detection device.It is simple in architecture and stable in performance, wh......

This mini review describes the development of the therapeutic concept of baroreceptor stimulation over the last fifty ye......

假如你是某报社编辑，收到了李华的一封来信。请仔细阅读下面的来信，并用英语写一封回信，分析他遇到的问题并提出合理建议。　　Dear B......

The influence of mechanic motion on the decay rate of 32P was studied by means of liquid scintillation counting (LSC). T......