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时间是一个计量单位,时间还是人类用于记录历史、开展各种工作所必需的工具。为了使读者了解自古至今的计时方法和相应的标准,以及未来可能的发展,特编写此系列文章。
Time is a unit of measure, and time is a tool human beings need to document their history and to carry out various tasks. This series of articles has been specially prepared to familiarize readers with time-based methods and corresponding standards since ancient times, as well as possible future developments.