Unsaturated hydraulic conductivity K (θ) and diffusivity D (θ) of meadow sandy soil in coastal area of North Belgium(NB) are determined in situ by internal drainage method, and their empirical formulae are obtained. 用内排水法实地测定了比利时北部近海岸草地沙土的非饱和导水率K(θ)和扩散率D(θ).并求得其经验公式。
Unsaturated hydraulic conductivity properties of meadow sandy soil in coastal area of North Belgium(NB) 比利时北部近海岸草地沙土非饱和水传导特性
The lowland region of western Europe on the North Sea : Belgium and Luxembourg and the Netherlands. 欧洲西部北海岸边的一个低地地区,指荷兰、比利时、卢森堡三个国家。
It borders the North Sea to the north and west, Belgium to the south, and Germany to the east. 它西面和北面临北海,南面与比利时接壤,东面与德国毗邻。
Like France with its North African and Caribbean contingents and Germany with its Turks, Belgium's national team has benefited from multiple populations : one from Western Europe, one from Africa, and one from Eastern Europe. 就像法国队内有北非和加勒比小分队、德国队中有土耳其裔球员一样,比利时国家队也从多元人口结构中受益:一个来自西欧,一个来自非洲,还有一个来自东欧。