抗药性的

In this report, chloramphenicol and oxytectacycline were chosen.

因为抗生素的存在，对细菌族群造成选择压力，导致抗药性细菌的产生。

Objective: To obtain a full length cDNA of novel deltarnethrin-resistance related gene from Culex pipiens pallens and identify differential expression levels between resistant and susceptible strains.

目的：获取淡色库蚊抗药性相关基因NYD-MLC2的cDNA全长序列并鉴定其在抗性品系和敏感品系中的表达差异。

Worse yet, the Diamondback is becoming resistant to pesticides.

更糟的是，小菜蛾对于杀虫剂的抗药性越来越大。

Objective To provide base data for insecticide resistance monitoring in house fly,a study was undertaken to establish the susceptibility of female house fly to deltamethrin at different development days after eclosion.

目的 研究家蝇雌成虫在不同发育阶段对溴氰菊酯的敏感性变化，为家蝇的抗药性测定奠定基础。

These results may provide a reference for management of triazole fungicide resistance of wheat powdery mildew, as well as the development and use of triazole fungicides.

此结果可为三唑类杀菌剂在我国的推广应用和制定合理的抗药性治理措施提供依据。

The invention has good effects for preventing and curing a plurality of crop diseases and is good for environment, which is characterized by low residue, high prevention effect, a plurality of action points and difficulty of generating drug resistance for germina.

五倍子提取物及含有之的农用杀菌剂对多种农作物病害有很好的防治效果，并且对环境友好，具有残留低、防效高、作用位点多和病菌不易产生抗药性等特点。

Objective To investigate the resistance of the natural housefly population to the chemical insecticides and their natural attenuation trend in the laboratory environment, and to provide the rational for the management of the resistance.

目的 研究家蝇自然种群对化学杀虫剂的抗药性现状及其在实验室环境下抗性自然衰减的变化趋势，为抗性治理提供理论依据。

Cavity displacement method and polymer pickling process could be used for the preparation of linalool formulation, which could provide new control measures to spacial repellent for insect, environmental contamination and insect resistance.

采用空穴置换法与聚合物浸渍法均可达到对芳樟醇的理想释控状态，为空间驱避昆虫、缓解环境污染和抗药性等问题提供了新的防控手段。

Objective To detect the resistance of Musca domestica in various habitats in early phase with the method of acetylcholinesterase. Methods The traditional assay method and acetylcholinesterase were used to detect the resistance of M.

目的 应用一种家蝇抗药性早期检测方法即乙酰胆碱酯酶法，了解南昌市不同生境家蝇对常用的有机磷和氨基甲酸酯类杀虫剂的抗性现状及其发展趋势。

This method can be used in PCR and RAPD amplification oncondition that the samples are in large quantities. Also can be used for detection ofbenzimdazol fungicide resistance in F. graminearum on DNA level.

用此方法所获得的产物可进一步用于PCR、RAPD以及Southern杂交等分子生物学研究，也为用分子生物学方法进行抗药性快速检测提供了理想的实验手段。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。