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关注：1
2013-05-23 12:21
求翻译：公元前550年中国人发明了算盘，用于计算，也是自古以来商业上广泛应用的计算工具是什么意思？ 待解决
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- 离问题结束还有
公元前550年中国人发明了算盘，用于计算，也是自古以来商业上广泛应用的计算工具
问题补充： |
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2013-05-23 12:21:38
550 BC the Chinese invented the abacus for calculation, is also widely used commercially since ancient times calculation tool
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2013-05-23 12:23:18
In 550 BC The Chinese invented the abacus that since ancient times, and is also used to calculate the computational tools commercially extensive application
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2013-05-23 12:24:58
550 B.C. Chinese has invented the abacus, uses in calculating, also is since the ancient times in the trade the widespread application computation tool
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2013-05-23 12:26:38
550 BC the Chinese invention of the abacus, used to calculate, is also commercially since ancient times widely used calculation tool
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2013-05-23 12:28:18
550 BC the Chinese invention of the abacus, used to calculate, is also commercially since ancient times widely used calculation tool
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