The box type structure, cavity cannot antirust paint corrosion, in order to prevent moisture intrusion corrosion beam cavity, sealing the inner cavity of the main girder must keep.
箱型结构的主梁，内腔无法涂漆防锈蚀，为了防止水汽侵入腐蚀主梁内腔，必须保住主梁内腔的密封性。
The control factors are analyzed when a steel box beam is designed. The main influence factors and the optimum principles in designing a steel box beam are put forward.
通过对目前常用的钢箱梁桥结构尺寸设计中的控制因素的分析，找出了钢箱梁尺寸设计中的主要影响因素，得到此类桥梁的尺寸优化设计原则。
With its excellent section characters, the prestressed concrete box beam plays a main role in the girder bridge.
预应力混凝土箱梁以其优良的截面性质在梁桥中占据了主要地位。
Controlling for distortion of main box girder carrier-track welded with T-beam is introduced in the paper.
介绍了对T型钢承轨偏轨箱形主梁的焊接变形控制。
Average type beam drill is composed of base, inside and outside column, rocker arm, main spindle box and job.
普通型摇臂钻床由底座、内外立柱、摇臂、主轴箱及工作组成。
The main bridge of Sanmenjiang Bridge in Liuzhou is a 3-span partial cable-stayed prestressed concrete box beam bridge with two pylons and double cable planes.
柳州三门江大桥主桥为双塔、双索面、三跨部分斜拉预应力混凝土箱梁桥。
The main bridge of Sanmenjiang Bridge in Liuzhou is a 3-span partial cable-stayed prestressed concrete box beam bridge with two pylons and double cable planes.
柳州三门江大桥主桥为双塔、双索面、三跨部分斜拉预应力混凝土箱梁桥。
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