冬眠
发表于 2025-4-1 03:37:40
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删减
发表于 2025-4-1 08:34:33
Model Studies on Local Scourture of the problem and a large number of variables involved a purely theoretical approach has been extremely difficult. Therefore, recourse had aften to be made to indirect methods, approximations, simplifying assumptions, dimensional analysis, experimental techniques, empirical approach, field exp
预知
发表于 2025-4-1 12:29:07
Hydraulic Research on Irrigation Canal Fallsarges. In the case of a regulated fall, it also serves to obtain command at specific points along a canal, where the water surface has to be raised to enable an offtaking main or branch canal to be supplied. In both cases, a drop in water level is artificially created which results in the conversion
唠叨
发表于 2025-4-1 16:07:52
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冰雹
发表于 2025-4-1 22:29:22
Scour at Bridge Piers in Meandering Channels — IIvestigated Italy. Equilibrium scour holes developed around the piers , boundary shear stress distributions , and flow characteristics in the soured zones were measured in the laboratory hi case of both round and lenticular nosed piers having length — width ratios of 2 and 3 , and placed at different