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湿地水环境系统是一个灰色系统。
The wetland water environment system is a grey system.
youdao
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旅游区环境是一种特殊的环境系统。
Tourist environment is a special environment system with its own uniqueness.
youdao
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流域是一个复杂的环境系统。
River basin is a complex environmental system.
youdao
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流域是一个复杂的环境系统。
River basin is a complex environmental system.
youdao