4.5×4×3×1=54(L)
6×6×(6-5)×1=36(L)
54-36=18(L)
正方体玻璃钢棱长6分米缸内水深5分米投入一块长4.5分米宽四分米高3分米刚内水溢出
正方体玻璃钢棱长6分米缸内水深5分米投入一块长4.5分米宽四分米高3分米刚内水溢出
其他人气：779 ℃时间：2020-04-11 16:44:48
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