求翻译：本文主要研究区域运输通道内旅客出行方式，是介于国家或国际这个大的空间尺度，与城市这个小的空间尺度之间，属于中观的空间尺度。因此，本文研究范围界定在我国城市化水平较高、客流密集的“城市群”的范畴内。是什么意思？

This paper studies the regional transport corridors within the passenger to travel, this is between the national or international large spatial scales, and the city between this small spatial scale, belongs to the concept of spatial scale. Therefore, the scope of this study to define the high level

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In this article main research region transportation channel the passenger goes on a journey the way, is situated between national or the international this big spatial criterion, with the city this small space criterion between, belongs to the intermediate perspective spatial criterion.Therefore, th

This major area of research in transportation corridor passenger travel mode, is between the broad spatial scale of national or international, and between the city of this small spatial scale, belongs to the meso-spatial scale. Therefore, the study on the definition of the scope of this article in t

This text mainly studies the area and transports passenger's trip mode in the channel, it is in country or this large space yardstick in world, between with this small space yardstick in the city, the space yardstick of the view while belonging to. So, this text research range is defined in the cate