• 目的探讨湖北省疟疾防制对策评价防制效果

    Objective To study the measures for malaria control in Hubei and evaluate the control effects.

    youdao

  • 目的测试不同配方电热蚊香片对淡色库防制效果

    Objective To test the control effect of mosquito mats with different compositions against Cullex pipiens pallens.

    youdao

  • 目的比较氟虫胺、吡虫啉灭蚁灵白蚁防制效果

    Objective To compare the effect on termite control of sulfluramid, imidaclorprid and mirex.

    youdao

  • 室内烟草赤星病试验结果表明菌株烟草赤星病防制效果在50%以上。

    The control effect of this strain was not less than 50 percent for the control of tobacco brown spot.

    youdao

  • 目的了解大型建筑工地流动人群流行性脑脊髓膜炎(流脑)爆发特点评价防制措施效果

    Objective to find out the characteristics of epidemic cerebrospinal meningitis outbreak among floating population in construction sites and to evaluate the effect of control measures.

    youdao

  • 目的探讨城镇流动水中防制对策,观察双硫磷颗粒剂灭蚊效果持效期。

    Objective To study the mosquito larvae management strategy in Shanghai City stream river and the effect, long-lasting activity of abate granules against mosquito larvae.

    youdao

  • 方法比较以文化防制为主综合防制单一药物家鼠效果

    Methods:Compareing the effect of integrated management and only use rodenticid to poison rats.

    youdao

  • 八十年代防制措施被动而且局限,八十年代中期采取以免疫为主导综合性防制措施效果

    Preventive strategies were passive and limited before the eighties, and the strategies were very comprehensive and effective after the middle of the eighties.

    youdao

  • 目的了解学校流行性脊髓(流脑)爆发特点评价防制措施效果

    Objective To analyze the characteristics of an outbreak of epidemic cerebrospinal meningitis in a middle school and assess the effect of control measures.

    youdao

  • 方法选择4家饭店,采用定面积目测法观察不同方法进行效果对比试验

    Methods To choose 4 restaurants, and to carry on an effect contrast trial of different preventing and controlling measures, by eye observation in certain area.

    youdao

  • 目的报告抗凝血灭鼠剂敌鼠钠盐溴敌浓度配现场防制家鼠效果

    Objective To determine the fi eld efficacy of the mixed baits of anticoagulant rodenticides Diphacinone Na-sa lt and Bromadiolone in low concentration against rodents.

    youdao

  • 目的报告抗凝血灭鼠剂敌鼠钠盐溴敌浓度配现场防制家鼠效果

    Objective To determine the fi eld efficacy of the mixed baits of anticoagulant rodenticides Diphacinone Na-sa lt and Bromadiolone in low concentration against rodents.

    youdao

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