China, the method of calibrating measuring gauge that measures engine thrust by using weights, lever systems etc has been long used and still finds widespread use.
该装置模拟发动机推力，用标准推力表对工作推力表在测量范围内任意需要点上进行校准。
2
On the base of distilling edges from images of human slices, by calibrating the gauge, the ratio relationship between the pixels of the gauge and the real section areas were obtained.