那时，天文学大部分就是处理图表等可视化数据。
These days, astronomy is mostly a matter of visual data expressed in charts and graphs.
年历；历书一种年度出版物，包括含天气预告、天文信息、潮汐图表和其它相关表格信息的日历。
An annual publication including calendars with weather forecasts, astronomical information, tide tables, and other related tabular information.
年历；历书一种年度出版物，包括含天气预告、天文信息、潮汐图表和其它相关表格信息的日历。
An annual publication including calendars with weather forecasts, astronomical information, tide tables, and other related tabular information.
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