Minimum relative windspeeds behind the windbreaks of different porosity ranged from 5%-67.3% of open windspeeds, this minima were located 1-18 multiples of windbreaks height away from the windbreak.
不同开孔率风障后的最小相对风速变化范围为5%—67.3%,分布在风障的下风向1h—18h(h为风障的高度)的距离。
参考来源 - 风障控制物料堆粉尘颗粒扬起的数值模拟及应用·2,447,543篇论文数据,部分数据来源于NoteExpress
同义词: shelterbelt
以上来源于: WordNet
N-COUNT A windbreak is something such as a line of trees or a fence that gives protection against the wind. 防风林; 挡风篱
Since 1978, over 66 billion trees have been planted to act as windbreaks.
自1978年以来,已经种植了660多亿棵树,作为防风屏障。
They built thousands of circular stone windbreaks and gardened inside them, and used broken volcanic rocks to keep the soil moist.
他们建造了成千上万的圆形石质防风林并在其中种植花草,还用破碎的火山岩来保持土壤湿润。
It has helped to plant more than 66 billion trees across 13 provinces in the country's north to act as windbreaks (防风林) , according to China Daily.
《中国日报》称,它在该国北部的13个省种植了660多亿棵树作为防风林。
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