查询词典 expellents

Effects of 3 kinds of plant-based materials including 14 materials on Blattella germanica were studied, Effects of 2 kinds of expellents and 2 kinds of pesticides were also studied, for the propose of comparation with the plant-based materials and evaluation of the latter.

本研究选用三大类共14种植物性物质对德国小蠊的防治进行了研究，同时对2种常用驱避剂和2种常用卫生害虫杀虫剂对德国小蠊的作用进行了测定，以期对植物性物质的作用进行比较评价。

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。