混合陶瓷球轴承
Hybrid ceramic ball bearing
混装陶瓷球轴承
Hybrid ceramic ball bearing
角接混合触陶瓷球轴承
angle contact hybrid ceramic ball bearing
陶瓷管干湿球湿度计
ceramic tube psychrometer
陀螺球带电极和弧电极
belt electrode and arc-electrode
陀螺球高度位置指示表
height indicator of gyrosphere
陀螺球高度位置指示器
height indicator of gyrosphere
陀螺球高度指示表
height indicator of gyrosphere
陀螺球高度指示器
gyrosphere height indicator