atomic clock

The atomic clock is accurate to one millionth of a second.

原子钟计时可以精确到百万分之一秒.

In a traditional atomic clock , atoms are illuminated by microwaves, in the gigahertz frequency range.

在传统的原子钟里, 原子受到吉赫波段的微波照射.

The atomic clock enabled scientists to measure time with much greater accuracy.

原子钟使科学家能够以更大的精度来测算时间.

Scientists developed the first atomic clock in 1949.

科学家们于1949年制作了第一台原子钟.

Such a molecular or atomic clock is now being developed and promises to be very accurate.

这种分子和原子钟目前正在发展中,预期能有很高的准确度.