Fastening of clockworks an dials for electric secundary clocks ; mounting dimensions 电辅助时钟装置的发条机构和刻度盘的紧固.安装尺寸
3.
The recording chart on an autographic rain - gauge is mounted on a drum which is driven by clockwork and typically rotates round a vertical axis once per day 自记式雨量器的记录表卷在记录筒上，该筒由时钟装置推动，通常轴心垂直，每天自转一周。
4.
The recording chart on an autographic rain - gauge is mounted on a drum which is driven by clockwork and typically rotates round a vertical axis once per day 自记式雨量器的记录表卷在记录筒上，该筒由时钟装置推动，通常轴心垂直，每天自转一周。
