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一個(gè)簡(jiǎn)支梁,,同樣的載荷和截面及長(zhǎng)度,結(jié)構(gòu)鋼焊接結(jié)構(gòu)與灰鑄鐵結(jié)構(gòu)哪個(gè)變形大,? |
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點(diǎn)評(píng)
這個(gè)想法不錯(cuò),。
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