9193| 12
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求助風(fēng)力大小的計(jì)算? |
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點(diǎn)評(píng)
風(fēng)壓其實(shí)是一個(gè)壓強(qiáng),風(fēng)載荷在表面上作用的方向不一致,會(huì)部分抵消,所以按投影面積算。你如果把風(fēng)壓理解成水壓,就會(huì)更加清楚了。
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