... selection key ==> 选择键 selection level meter ==> 选频电平表 selection lever ==> 选择杆 ...
双语例句
1
When periodic signals are analyzed in the laboratory, we measure the frequency spectrum of signals usually by a selectionlevelmeter.
在实验室进行周期信号分析时,通常使用选频电平表来测量其频谱。
2
This paper introduces the levelmeterselection procedure in Hangzhou Refinery, aswell as the application of steel belt levelmeter.
介绍了杭州炼油厂液位仪表的选择,以及钢带液位计的应用情况。
3
The paper elaborately introduces the working principle and characteristic of the radar fluid-levelmeter, the composition of the survey system, type selection requirement and installed essentials etc.