计算①8.9+2.35+7.23②7.31+2.15-3.00③4.85+13.77+209.03

更新时间2022-03-24 09:16:07

1° 8.9+2.35+7.23=11.25+7.23=18.48

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2° 7.31+2.15-3=9.46-3=6.46

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3° 4.85+13.77+209.03=18.62+209.03=227.65

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13t*9.8N/kg=127.4kN