Yahoo奇摩 網頁搜尋

  1. ...several pieces of rebar together. Special grades of rebar steel and welding rods make welding by expert welders possible. [edit] Safety To...

  2. ...of Energy, we have H2 = H3 = H1/2 Consider rod 1, H1 = kA(T1 - Tj)/L ------------ (1) Consider...

  3. ...持續焊接 另一種較新的連接鋼軌的方法是持續焊接軌道(Continuous Welded Rail, CWR),亦稱無縫軌道或長焊軌。這種方法把數公里長的鋼軌...

    分類:汽車及交通 > 鐵路 2007年07月19日

  1. 相關詞

    焊條