发布时间:2025-01-31 04:17:49
半径为12.56÷3.14÷2=2m
体积为π×2^2×2=8π 立方米
可以盛稻谷8π×600=4800π≈15079.64千克
装修中五层公寓我家在五楼用水塔供水水管布设中用4分管好还是6分管好
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