河床纵断面 longitudinal profile of river bed; longitudinal profile of torrent; river bed profile; stream bed profile 河道纵断面 river longitudinal profile .
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river-bed profile 河流纵剖面
longitudinal river bed profile 河床纵剖面
longitudinal profile of river bed 河床纵断面
river bed longitudinal profile 黄河河床纵剖面
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