二四六开奖现场

二四六开奖现场News
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怎样计算烟台彩印包装的抗压强度

编辑: 发布时间:2019/11/29 10:13:17 点击:

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  caiyinbaozhuangzhuyaoyonglaibaozhuangyixiewupin,butongdewupinxuyaodebaozhuangzhipindedaxiaoyebutong,zheijiuxuyaobaozhuangyidingyaojubeikangyaqiangdu,fangzhizaishiyongdeshihouyouyuwaijieyalidaozhibianxingdeqingkuangfasheng,suoyiduiyubaozhuangzhipinlaishuowomenkeyijisuanqikangyaqiangdudaxiao,xiamianjidajiajieshaoyixia。

二四六开奖现场  (1)p=kw(n-1)shizhongp-caiyinbaozhuangzhixiangnaiyaqiangdu,w-zhixiangzhuanghuohouzhongliang,n-duimacengshu,k-duimaanquanxishu

  zhucunqixiaoyu30dquk=1.6

二四六开奖现场  zhucunqi30d-100dquk=1.65

二四六开奖现场  zhucunqidayu100dquk=2.0

  (2)juyuanliaojisuanchuzhixiangkangyaqiangdu

二四六开奖现场  duimacengshungenjuduimagaoduhyudangezhixianggaoduhqiuchu,n=h/h

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