longitudinal river slope 纵比降 ; 河道纵比降
longitudinal river bed profile 河床纵剖面
river longitudinal profile 河流纵剖面 ; 河道纵断面
longitudinal profile of river bed 河床纵断面
longitudinal impedance profile of river 河流纵剖面
longitudinal consequent river 纵顺向河
longitudinal dispersion coefficient of river 河流纵向离散系数
In this paper the authors put forward the twin-station fitting method-a new method for calculating the river longitudinal dispersion coefficient by tracing tests.
本文提出一种由示踪试验计算河流纵向离散系数的新方法——双站拟合法。
Finally, the longitudinal and transversal sedimentation patterns in reservoir, scoured funnel in front of the dam, and relation between main river and tributaries were also studied.
对库区纵、横向淤积形态，坝前区冲刷漏斗形态、尺寸及干、支流三角洲的关系进行了分析研究。
The second stage construction area on the main river bed is formed by the second stage up & downstream transverse cofferdams and the longitudinal con crete cofferdam.
三峡工程二期上、下游横向围堰与混凝上纵向围堰共同形成二期基坑，测绘工作要求很高。
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