...inson (1993)将湿地依水动力分类为三个 大类:(a)垂直水位变动:蒸发散与降雨或地 下水补注之平衡;(b)单向流(unidirectional flow):泛洪时,水流由河槽冲刷向洪水平 原;(c)双流(bidirectional flow):潮汐或湖 水水位升降造成来回流动。
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...）的高级研究人员怀特菲尔特（Willis Whitfield）提出了当时称之为层流（laminar flow），现正名为单向流（unidirectional flow）的洁净空气流组织方案，并应用于实际工程。从此洁净室达到了前所未有的更高洁净级别。
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unidirectional flow ventilation 单向流通风
unidirectional flow of data 资料单向流
horizontal unidirectional flow 水平单向流
unidirectional flow of information 单向信息流
vertical unidirectional flow 垂直单向流
vertical unidirectional-flow cleanroom 垂直单向流洁净室
Unidirectional Data Flow 单向数据流
Some very simple programs can be written with only this unidirectional flow.
有些极简易的程序可以只用这种单向流程来撰写。
In the paper, an algorithm to evaluate the distribution of clean level in non -unidirectional flow clean operation room is proposed based on CFD Computational Fluid Dy...
通过利用CFD技术得到室内所关心区域的污染物浓度水平和洁净等级，从而对洁净室设计和运行效果给出更合理的评价。
Such endeavor promoted the substitution of the traditional and unidirectional linear economy for the material closed-loop flow circulation economy having material circulation utilization as its core.
这种努力促使以物料循环利用为核心、物质闭环流动型的循环经济，取代传统的、物质单向流动的线性经济。
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