The painting anticorrosive metal surface to achieve good expected effect, the first is the choice of materials, the second is the concrete construction technology.
金属表面的涂漆防腐蚀欲达到预期的良好效果，首先是其材料的选择，其次是具体施工工艺。
It has proved by the experiment that the non - removal mesh form can replace the manual roughing on concrete surface in the first and second stage concrete construction.
试验证明，免拆模板网用在一、二期混凝土中可以代替人工凿毛工艺。
A mix proportion design method of pervious concrete is provided, of which total void ratio is the first design parameter and compressive strength is the second one.
根据透水混凝土的结构特征，对其配制参数和配合比计算方法进行了研究，提出了以总孔隙率为第一设计参数，抗压强度为第二参数的配合比设计方法。
The first was erected around the time of the second world war using a hybrid construction, while the second dates from the 1960s and features a steel frame, wooden floors and a concrete facade.
第一座建造在第二次世界大战期间，使用了混合结构；第二座可以追溯到20世纪60年代，采用了钢结构、木地板和混凝土立面。
Now with a concrete business idea and solid market research under their belt, Ren and his partners opened their first store in March and second chain store in April.
在扎实的市场调研并形成具体的创业方案之后，今年3月，他们的第一家店开业，4月，他们的第二家连锁店也开业了。
For the lining of the main body (2) of the dust chamber (1) and first and second stage cyclones (3, 4) are used the non-porous and wear proof material, for example concrete.
集尘室(1)的主体(2)以及第一和第二级旋风器(3,4)的内衬使用无孔耐磨材料，例如混凝土。
There are two difficult points in the thick plate transition layer of the high-rise building. The first point is the security of load transfer, and the second is the control of mass concrete cracks.
高层建筑厚板转换层施工有两个难点，一是荷载安全传递问题，二是大体积混凝土裂缝控制问题。
There are two difficult points in the thick plate transition layer of the high-rise building. The first point is the security of load transfer, and the second is the control of mass concrete cracks.
高层建筑厚板转换层施工有两个难点，一是荷载安全传递问题，二是大体积混凝土裂缝控制问题。
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