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一打怎么来的?为什么叫一打??打是dozen音译的吗 [Copy link] 中文

Post time 2009-4-1 08:07:05 |Display all floors
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Post time 2009-4-1 09:03:38 |Display all floors
一打,十二个
a dozen
来源:英制单位
长度单位一英尺等于12英寸,重量单位一磅等于12盎司,一先令等于12便士,就连足球比赛罚点球的英制长度也是12码。

十二进制来源:传说是十个手指头加两只脚。 规定一打12个是一种12进制。 瑞典历史上有一位有远见的国王就说过,从日常应用的角度看,十二进制比十进制更方便。他生前曾设想过,在他管辖的范围内十进制,而代之以十二进制。 现在还能见到十二进制,比如一年12个月,钟表转一圈12小时等等。

一打为12个.半打是6个。例如一打袜子是表示12双袜子。

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Post time 2009-4-1 09:52:24 |Display all floors

打是dozen音译的吗

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Post time 2009-4-1 10:26:52 |Display all floors
极有可能。此“打”该念一声吧。

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