2寸管是英制尺寸,一般指的是公稱內徑DN50管,國內有多種規格。按外徑60.3mm.厚度3.8mm計算:該管半徑:(60.3-3.8×2)/2=26.35mm=2.635mm
1升=1000cm³
2.635²×3.14×100÷1000≈2.18升
答:一米2寸管的容積是2.18升
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