关键词: 原子钟, 时间频率, 基础研究, 工艺技术

Abstract: This conference is held every two years by four committees.This year is the 20^th anniversary.For the last 20 years,the research of atomic clocks in our country has achieved remarkable progress.We have now become a large country developing atomic clocks.While what we do is mostly following others,the original innovative research is still not much.Without changing this situation,it would be difficult to stand on our own and contribute to the economic development of our country.In this paper,we briefly review our history of developing the atomic clocks,in the meantime we look back to some stories of fundamental research.It is the deeply analyzing of those experimental phenomena that we can achieve the progress under poor conditions.The important role of the skillful craftsman is also mentioned.This paper also talks about the spirit of cooperation between different organizations.In general,this paper tells some stories in the course of developing atomic clocks,and expresses some opinions about the atomic clock industry.There are still quite a lot of difficulties revitalizing the nation.We have to overcome these difficulties with original innovative work.Thus,the spirit and tradition of studying and hardworking is still necessary.

Key words: Atomic clock, Time and frequency, Fundamental research, Process technology