... 上承结构：deck structure 上层滞水位：perched water level 上层纤维：top fiber ...
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The perched stream is the river whose bed is apparently higher than the land side ground of the river wall and whose water level is higher than both side grounds all the year round.
悬河是指河床明显高于河流堤防背河侧地面的河，其水位常年高于两岸地面。
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