养鱼槽

Tray soilless culture evolved by the nutrient flow technology in which there was only a layer of nutrient liquid and the oxygen was very enough was designed to improve the effect of wastewater purified by the terraneous It was showed that when the height of the tray was 1cm, and six layers of clothes were laid on the tank to filtrate and hold wetness the wastewater, furthermore, the gradient of the tank was between 2 and 8, the tray soilless culture was the most feasible.

为了提高陆生植物净化废水效果，根据仅有一层营养液流过栽培容器的底部而使供氧条件大大改善的营养液膜技术衍变而设计一种栽培方式即育苗盘种植。试验研究表明，最适的盘培方式为育苗盘高度为1cm，栽培槽上再铺设6层无纺布用于养鱼废水的过滤、保湿，另外，栽培槽的坡度设计在2％—8％之间。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。