The position of the rod is determined by a micrometer screw gauge or spherometer.
杆的位置由千分尺螺丝规或球度计确定。
2
The three - meter checking device and hydraulic machine were developed to substitute the traditional three - legged divider plug gauge and correction by the thread rod.
设计的三表式检测装置和液压机具取代了传统的三脚规及塞片检测和人工操纵螺杆校正；
3
The installation of level gauge used for urea stripping tower, the structure and forming of radioactive rod source, and the calculation of its approximate linear graduation are described.