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評(píng)價(jià)下,該結(jié)構(gòu)是否可行 |
點(diǎn)評(píng)
看這個(gè),就是個(gè)管,帶豁口,直接撐開。要注意您那邊用多大的收卷力,強(qiáng)度要夠
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