Shengji Zonglu; General Records of Holy Universal Relief
【机械工程】带有插销的万向联轴节
universal joint coupling with pins
暂无补充释义。
universal joint coupling with pins
暂无补充释义。
Shengji Zonglu; General Records of Holy Universal Relief
universal polar stereographic grid【测】
coordinated universal time
universal chrome-plated vernier angle protractor
universal counter
gravitation【力】;gravity【力】;universal gravitation【力】
manually operated universal milling machine
universal symmetry