Equipment and devices may be used for indication, monitoring or measuring. The same equipment could be used for all these three functions.
2
旋标装置飞机控制板上的指示器或观测仪,用来测量角度。
An indicator or a sighting apparatus on a plane table, used in angular measurement.
3
文中叙述了以气体分析质谱计作指示器,动态法测量渗透率的原理,实验装置与测量结果。
In this paper, it is described the principle of penetration rate measured by dynamic method, experiment set-up and the measured result, the gas mass spectrometer was taken as indicator.