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2013-05-23 12:21
求翻译：At first the wheel was nothing more than a small disc, turned on a pivot by hand, but later it was improved by raising it and providing it with a larger circular platform near the ground as well which could be rotated by the potter with his feet. Such a wheel was probably in use in Egypt by about 200 B. C., though this是什么意思？ 待解决
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At first the wheel was nothing more than a small disc, turned on a pivot by hand, but later it was improved by raising it and providing it with a larger circular platform near the ground as well which could be rotated by the potter with his feet. Such a wheel was probably in use in Egypt by about 200 B. C., though this
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