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ݔ͎Ď۰wʽBߣаz    l(f)r(sh)g2019-03-22    c(din)Δ(sh)

        ݔ͎Ď۰wʽɷ֞飺ŎۡpŎŎۺBw
       1Ŏۡ1(g)wֻܰb1(g)?sh)Ď@NʽĎoB(ti)(qing)һ680 N/mm(yng)ܵһơچŎ۵Ŀᔛ]A(y)bڿwʆŎӆ^в(wn)׮a(chn)^Ť[ӆ۳ɹ^ͣԓʽ۵ă(yu)c(din)ˇɱ^͡
       2pŎ1(g)wܰb2(g)?sh)Ďۡ@NʽĎ۽Y(ji)(gu)(wn)Qӆ^Ť[^Ć}۵ӆ۳ɹʵõ˺ܴͬr(sh)pŎۏ(qing)ȵȼ߿_(d)2 800 N/mm
      3Ŏۡһ(g)wܰb3(g)?sh)Ď@NʽĎۏ(qing)ȵȼ_(d)3 400 N/mmҪ^ߵļӹˇֶ
      4Bwwһ߅BӲܝM㌒ҪĎӆƌ1 200 mmӲ^͵ݔ͎r(sh)؄eǷ֌ӎ@NʽĎЧطֹݔ͎׃Σʹ^õČͬr(sh)Bwۏ(qing)ȵȼҲ_(d)2 500 N/mm

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