Sign up to save your library
With an OverDrive account, you can save your favorite libraries for at-a-glance information about availability. Find out more about OverDrive accounts.
Share
Find this title in Libby, the library reading app by OverDrive.
Search for a digital library with this title
Title found at these libraries:
| Library Name | Distance |
|---|---|
| Loading... |
郭守敬是元朝著名的科学家。他改进了圭表和浑仪，测定了黄道和赤道的交角。接下来，我们将用6节课的内容，为你介绍郭守敬的生平及其在水利、天文等方面的成就。
Share
