体积与重量单位换算
一方的钢筋为多少吨
人气：408 ℃ 时间：2019-08-21 00:37:03
解答
铁的密度7.8克/立方厘米=7800千克/立方米
M=ρV=7800*1=7800千克=7.8吨
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