长椅是由建筑混凝土预制构件。
The bench is made of precast elements in architectural concrete.
我们提出使用素混凝土是由于其低廉的维修费用，并且以预制构件进行搭建保证了建筑施工的速度，另外能够避免对大学日常生活产生影响。
We proposed the use of exposed concrete due toits low maintenance, developed through prefabricated elements that provide speed of execution, and to prevent affectingthe daily lifeof the University.
的宜用捣棒人工捣实。检验现浇混凝土工程和预制构件质量的混凝土，试件的成型方法应与实际施工采用的方法相同。
To concrete used to test cast-in-place concrete project and prefabricated parts quality, forming method of specimen shall be the same as method adopted in practical construction.
软弱围岩隧洞在设计上采用钢筋混凝土装配式预制构件衬砌的方式近年来越来越多，但在施工上还一直没有形成一套较完善的衬砌安装方法。
In recent years the reinforced concrete precast element linings are adopted more and more for the soft surrounding rock tunnels. But a perfect assembling method for lining is not performed yet.
软弱围岩隧洞在设计上采用钢筋混凝土装配式预制构件衬砌的方式近年来越来越多，但在施工上还一直没有形成一套较完善的衬砌安装方法。
In recent years the reinforced concrete precast element linings are adopted more and more for the soft surrounding rock tunnels. But a perfect assembling method for lining is not performed yet.
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