It is a one - day clock ; the spring winds down in 2 4 hours 这是一天上一次弦的钟,发条走24小时就松掉了。
2.
Refer to appendix b , operating parameters , seven - day clock , for informationabout setting up the seven - day clock and the standby delta 设置周循环时钟和待机变量( ? )可参考附录2运行参数、周循环时钟部分的有关内容。