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