Writer:wj |
Update time:2003/1/31 下午 01:39:00 |
重量的速算法鐵
圓形鐵 半徑cm*半徑cm*3.1416*長度cm*7.85(比重)=重量g
速算法 0.0062直徑mm*直徑mm*長度mm=重量g
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Writer:扶蘇 |
Update time:2011/10/1 上午 11:49:51 |
安ㄋ咖準0.00617*直徑*直徑*長度
會比較準確
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Writer:3cmZUIU5X |
Update time:2015/10/26 下午 04:55:07 |
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Writer:gyWLsfk0R3 |
Update time:2015/12/23 上午 01:40:18 |
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