3040| 3
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結(jié)構(gòu)鋼的許用應(yīng)力查哪個(gè)書? |
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點(diǎn)評(píng)
許用應(yīng)力和鋼種、工作狀態(tài)和工作部位的重要性有關(guān)吧。我記得圖表的第一頁(yè)就是許用應(yīng)力,是按鋼號(hào)分的
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