The relationship among three sub-environments and the structure, feature and function of each sub-environment are discussed.
研究了其三个子环境的结构、特点和功能以及相互之间的关系。
The relationship among three sub-environments and the structure, feature and function of each sub-environment are discussed.
研究了其三个子环境的结构、特点和功能以及相互之间的关系。
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