钋是高放射性的元素,金属.Polonium is a highly radioactive element and a metalloid.两个遗留有钋的星球被一些不明原因突然破坏.Two old plutonium disposal plants damaged at once by some unestablished reason.钋的同位素在自然界中的确存在,但是相当罕见.The isotope does occur in na...
The satellite fixes positions by making repeated observations of each star.卫星通过对每颗恒星反复观察进行定位。He fixes you with a piercing stare.他用锐利的目光盯住你。He fixes his eyes on the greyish spine of the old wolf as he swoops down.他两眼死死盯住老...
若详细研究一下说明书和可编程序的输入/输出端口,则大部分A/D转换器的接口问题都可得到解决.Careful study of the data sheets and a programmable input - output port solve most A / D interfacing problems.介绍了安阳邮局包刷车间可编程序自动控制系统的构成、作原理及数码输入和显示的应用特点及程序流程图.An operating sys...
Three celebrated tenors sang at the president's inauguration.3位著名的男高音歌手在总统就职仪式上演唱.inauguration of scientific systems of tillage开创科学化的耕作系统The inauguration of the President is announced for Friday.总统的就职典礼已定于星期五举行.Thre...