澳门赌钱app

  • <tr id='dbV7H5'><strong id='dbV7H5'></strong><small id='dbV7H5'></small><button id='dbV7H5'></button><li id='dbV7H5'><noscript id='dbV7H5'><big id='dbV7H5'></big><dt id='dbV7H5'></dt></noscript></li></tr><ol id='dbV7H5'><option id='dbV7H5'><table id='dbV7H5'><blockquote id='dbV7H5'><tbody id='dbV7H5'></tbody></blockquote></table></option></ol><u id='dbV7H5'></u><kbd id='dbV7H5'><kbd id='dbV7H5'></kbd></kbd>

    <code id='dbV7H5'><strong id='dbV7H5'></strong></code>

    <fieldset id='dbV7H5'></fieldset>
          <span id='dbV7H5'></span>

              <ins id='dbV7H5'></ins>
              <acronym id='dbV7H5'><em id='dbV7H5'></em><td id='dbV7H5'><div id='dbV7H5'></div></td></acronym><address id='dbV7H5'><big id='dbV7H5'><big id='dbV7H5'></big><legend id='dbV7H5'></legend></big></address>

              <i id='dbV7H5'><div id='dbV7H5'><ins id='dbV7H5'></ins></div></i>
              <i id='dbV7H5'></i>
            1. <dl id='dbV7H5'></dl>
              1. <blockquote id='dbV7H5'><q id='dbV7H5'><noscript id='dbV7H5'></noscript><dt id='dbV7H5'></dt></q></blockquote><noframes id='dbV7H5'><i id='dbV7H5'></i>

                聯系我們

                臨沂市金豪邁機械制造公點了點頭司
                手機:15253981173
                座機:0539-7011529
                傳真:0539-7011529
                聯系人:金先生
                地址:山東臨沂市■蘭山區義堂鎮327國道與大陽︻路交匯向南1000米路東

                行業動態

                首頁>>行業動態
                臨□ 沂膠合板廠介紹木材的含水率
                作者:admin  來源:  發表時間:2017-4-1 10:15:10


                臨沂你們根本不可能過膠合板廠介紹木材的含水率:
                        什麽叫『木材的含水率? 木材中水分的含∮量,叫做含水率,或稱含水量。用水分的重動手量對木材的重量之比的百分率(%)表示。木材的含水率有兩種表示方式: 
                        第一種叫絕對含水率,或稱含嗡水率。用全幹木材的重量是作為計算基礎,用字母W表示.    
                        第二種叫相對含水率,是用濕材重量作為計算基礎的,用符號W0表示,在木材幹燥生他們還擁有聖#┛產中,廣泛采用▓的是絕對含水率(簡稱Ψ 含水率)。