TaiChi

水庫存量

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aivsia

in

三月二十五到三月二十九
227減226,5=0.5/4=0.125

三月十七到三月二十五
228.5減227＝1.5/8＝0.1875

三月十五到三月十七
229.5減228.5=1/2=0.5000

有呈現節約用水。加油

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