footing beam造句

• They used a 40 feet beam for this building
  这屋他们用四十?长横梁。
• According to the principle of ring - like strands operation , the mechanical analytic solution of presressed concrete penstock under the uni - ring - like radial loads is given out based on the theories of elastic footing beam
  根据环形预应力作用机理，结合弹性地基梁理论，提出了单环预应力作用效应的计算方法和预应力混凝土压力管道施工阶段的验算方法。