城市体系是一定地域范围内不同等级、不同性质的城市所组成的相互联系、相互作用的系统。
The Urban system is a system that consists of some cities and these cities are different in scale and character and interact with each other.
城市体系是一定地域范围内不同等级、不同性质的城市所组成的相互联系、相互作用的系统。
The Urban system is a system that consists of some cities and these cities are different in scale and character and interact with each other.
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