杀蝇剂

Dichlorvos was once a good product and widely used for its outstanding effect on knocking down insects and easy volatilizing. But DDVP and chlorpyrifos are limited to use for the reason of safety. According to the recommendation of WHO, a new miticide,pirimiphos-methyl, was developed by Hunan chemical academy in 1999. It can be used for controlling mosquitoes, flies, cockroaches and mites et al.

有机磷杀虫剂中的敌敌畏由于具有击倒作用与杀灭能力较强，又有自然挥发功能，所以，是应用最广的品种，但DDVP在卫生杀虫剂中已处于限制使用状态。1999年，湖南化工研究院，根据WHO的推荐，研制开发了广谱，速效杀虫，杀螨剂—甲基嘧啶磷，可用于防制蚊，蝇，蟑螂和螨等。

Based on the trials undertaken in the country and elsewhere foliar application of Kasu-B 3% SL is also reported effective for the control of bacterial soft rot on potato, and kiwifruit bacterial canker and Anthracnose on cucurbits, at a dose of 1500 – 2000 ml/ha.

阿维菌素是一种新型无公害生物杀虫杀螨剂，具有强烈胃毒，触杀，内渗作用。主要用于防治各种农作物上的鳞翅目，鞘翅目，同翅目，双翅目害虫及害螨。特别是对抗性小菜蛾，斑潜蝇，螨类有特效。

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。