查询词典 cockroach

Methods The insecticide film was used to identify the resistance of German cockroach to four kinds of insecticides.

采用药膜法测定德国小蠊对4种常用杀虫剂的抗性水平，采用分光光度法测定酶活性。

The results suggested that insecticide resistance in German cockroach field populations may be correlated with elevated activity of CarE.

结论德国小蠊抗性品系和敏感品系在CarE生化特征上的差异，显示出德国小蠊抗性品系对几种拟除虫菊酯类杀虫剂产生的高度抗性，与其体内CarE活性的提高有密切关系，表明CarE活性的提高是北京地区野外德国小蠊品系普遍存在的一种抗性机制。

The results indicated that cytochrome P450 was correlated with resistance to insecticide in resistant strains of German cockroach.

结论德国小蠊抗性品系、敏感品系在Cyt-P450 CO差光谱上的差异，表明德国小蠊抗性品系的Cyt-P450参与了抗性的形成

The resistance level of German cockroach from different sites was analyzed by average linkage method.

比较德国小蠊对7种杀虫剂的抗性程度差别；比较8个取样点德国小蠊种群的抗性差别，并以类平均法做聚类分析。

Objective:To evaluate the high activity poison bait against resistant German Cockroach.

目的：观察高效连锁杀蟑药饵对高抗药性德国小蠊的防制效果。

Fourth, German cockroach nymphs are smaller than most other cockroaches; thus, they are able to conceal themselves in many places which are inaccessible to individuals of the larger species.

第四，德国小蠊的若虫比其它种类的蟑螂的要小，所以在很多地方，德国小蠊比其它的大蟑螂更加容易隐藏和独立生存。

German cockroach nymphs also tend to stay close to each other, often close to the female at the time of hatching, creating a tendency for a high local population density.

德国小蠊的若虫倾向于相互之间呆在比较相近的地方，在它们孵化的那段时间通常在雌蟑螂的身边，这样可以使得蟑螂密集地聚集在一起。

Compared with before treatment, the enzyme activity of German cockroach changes with the difference of time after treated with sub-lethal doses of deltamethrin and phoxim.

经溴氰菊酯和辛硫磷亚致死剂量处理后德国小蠊体内酶活性在不同的时间与处理前存在差异。

School of Public Health,Southeast University,Nanjing 210009,ChinaAbstract : Objective:To measure the effect of beta-cypermethrin to the general esterase and acetylcholine esterase activity of German cockroach.

目的：了解高效氯氰菊酯对德国小蠊乙酰胆碱酯酶和非特异性酯酶活性的影响，为探索抗性机制及抗药性生化检测方法提供理论依据。

These biological factors, combined with its very adaptive feeding habits and other behaviors, give the German cockroach advantages toward increased chances for survival and persistently maintaining high populations.

基于以上因素，并且结合它的易生存和其它的行为表，使得德国小蠊具有更加容易生存和整个群体持续繁殖的优势。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。