亚洲人成网址在线播放,亚洲不卡无码永久在线观看,在线精品自偷自拍无码,久久精品人人槡人妻人人玩,精品精品国产男人的天堂,日韩一区二区三免费高清,亚洲AV无码欧洲AV无码网站 ,无码男男做受G片在线观看视频,亚洲精品成人AV观看,国产熟女高潮视频

      gӭMӱh(hun)Ƽ޹˾I(y)W(wng)վ
      ȫ՟ᾀ 139-0328-0406
      ]ʽsS
      ИI(y)YӍ
      P(gun)Ϣ

      Aʽs(sh)

      ߣhengkeԴӱh(hun)Ƽ޹˾rg2020-12-02 08:27L
      AʽsmСˮˮԴɢõѭh(hun)sˮϵy(tng)ʹʮ`СsD(zhun)ʽˮϵy(tng)Y(ji)(gu)ˮMһssù̶ˮϵy(tng)Mһwķ(wn)
      sҪ(sh)

      Aʽs(sh)

      mСˮˮԴɢõѭh(hun)sˮϵy(tng)ʹʮ`

       f 

            1˜OӋrض31.5ض28棬≺99400PaMˮض42ˮض32棻

            2ӯBʽЧAϵxʹԓs_Y(ji)(gu)oռeС`OӋĿ

            3ÙCͿոY(ji)(gu)ֱeD(zhun)١̈́ӉLC~Ƭʹԓsй(ji)@c

            4•sMLڼ^(q)OøЧbãʹͬesЧ_5dB(A)

            5ߏFRPY(ji)(gu)ԓsϵđʹз܃(yu)ʹÉL@(yu)c

            6СsD(zhun)ʽˮϵy(tng)Y(ji)(gu)ˮMһssù̶ˮϵy(tng)Mһwķ(wn)

            7D(zhun)ʽˮϵy(tng)OÓˮb̶ʽˮϵy(tng)Oˮbãʹshˮpʧ0.01%ԃ(ni)

            8AY(ji)(gu)xõĿL؄emغ_L؅^(q)ʹԓsOӋL_0.75KN/m2

            9weСpY(ji)(gu)ΣbSoO麆ݷ

      DBNL3ϵе•sҪ(sh)

      DBNL3ϵе•sҪ(sh)

      f

      1•˜cDmyֱֵhA1.5׸ߣС1.5וrȡ    Dm=1.5ף

      2ϵИ˜OӋrضT=28Mˮضt1=37,ˮضt2=32ˮؽt=5ƽt2-T=4档

      3гT=28rt=5漰8,t2=32T=27棬t=5漰8t2=32sˮxÕr(sh)sˮՈ

      4Mˮָӹc̎ˮ1Kgf/cm2=9.8×104Pa˱ϵˮ0.20.49Kgf/cm2֮g

       GBNL3ϵйI(y)sҪ(sh)

      GBNL3ϵйI(y)sҪ(sh)

      f 1ʹX݆pr˜c<72dB(A)ʹÄpr˜c•ֵcֱ•sͬ 2гĝضT=28漰T=27sˮ乤r£ˮؽt=10rMˮضt=43棬ˮضt2=33ˮؽt=20漰25rMˮضt1քe6055棬ˮضt2=35 3Mˮָӹc̎ˮ1Kgf/cm2=9.8×104Paϵˮ0.30.5Kgf/cm2֮g

       

      P(gun)a(chn)Ʒ

      ŷ޷ŷ| ٸƷר| ŷղavϵ | ŷպĶ| 99߾Ʒ߾Ʒ| °| 2019ĹĻ| avһþ| ŷ߹ۿƵպ| ƷþþþþƷ| VAVAVAŷVA| պɫƷƵ| ޹ɫ㿨234| ƷƷƵ| þóѾƷվ| ղŷۺһƷһ| ŷ񻶽ɶ| ղƷһ| AVH߹ۿ| þ91޾ƷĻ| AV| þùƷ͵ˬA| ձ߰| ŷպ޾Ʒ| Ů˱ˬgif̬ͼӿ| AVþþƷݺݰ˳| ɫavֻ߹ۿ| һרAV| 鶹ҹƷţţ| ĻһŮͬ| 91޾Ʒһ| AVѹۿ| ۰߳NPƵ| ƷŮպʮ| AVһ| Ļһ| ˬ| ҹ۵ӰӰԺ| Уǿ̣ʮ˽Ƶ| ۺɫ | ޹ҹƷ|