黄汉民先生就福建传统民居的分类问题提出了著名的红砖与灰砖理论。

As to the classification of the FuJian traditional dwellings, Mr. Huang Hanmin put forward the famous "Red brick and Gray brick theory".

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并比较分析了空心灰砂砖与普通灰砂砖及粘土砖性能的整异以及空心灰砂砖与砌体性能之间的关系。

Compares and analysis the difference of properties of the hollow sand-lime brick and the ordinary sand-lime brick and clay; the intimate relationship between the brick and its wall.

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园中只有四个要素：传统灰砖砌墙与铺地，柳树，镜子，还有铜质风铃。

The garden is composed mainly of only four elements: traditional grey brick walls and paving, willow trees, mirrors, and bronze bells.

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