The patching coat consists of the primary layer made of polyether polyurethane and the surface layer made of elastic polyurethane.

修补的涂层由聚醚聚氨酯底层和弹性聚氨酯面层组合而成。

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Construction method is determined according to the structure location and attention should be paid to the primary layer treatment and the preparation of polymer cement mortar.

施工中需根据不同部位采用不同作法，还应注意做好基层处理和聚合物水泥砂浆的配制等。

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The primary role of JNDI in a J2EE application is to provide the indirection layer so that components can find required resources without being much aware of the indirection.

JNDI在J2EE应用程序中的主要角色就是提供间接层，这样组件就可以发现所需要的资源，而不用了解这些间接性。

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This is the primary layer of the visualization.

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Starting with a six-metre high, primary rectangle, he imposed a minute linear variation on each fresh juxtaposed layer.

ECONOMIST: Building design