By competing with rodents for seeds, black ants help control rodent populations that pose a public health risk.
通过与啮齿动物争夺种子，黑蚂蚁有助于控制啮齿动物的数量，这些啮齿动物会对公众健康构成威胁。
Though the technique has been used to control and explore neural circuits in fish, flies and rodents, this is the first time the much-hyped technology has ever been used in primates.
尽管这一技术也曾用在控制和探索鱼、苍蝇以及啮齿类动物的脑中，但这次却是将这项被大肆炒作的技术第一次用于灵长类动物。
To comply with the us Toxic Substances Control act, manufacturers turn to testing LABS, which expose animals-usually rodents-to high levels of the chemical in question.
为了符合美国有毒物质控制法，制造商们转而进入实验室，选择动物作为试验对象，通常他们会选择啮齿动物。
All major efforts to control insects and rodents must be closely coordinated with national programs and practices, especially with the national malaria control program.
所有控制昆虫和啮齿动物的重大措施都必须和当地国家的规章和程序相协调，尤其是同当地的全国疟疾防治计划。
Reducing the numbers of flies, mosquitoes, and rodents quickly in an emergency may be difficult, but physical screens can be used to control the immediate problem.
在紧急情况下减少苍蝇，蚊子和啮齿类动物可能会很困难，但物理屏障可以用来控制最迫切的问题。
He also worked out how to control the timing of the rodents' ovulation - which annoyingly tended to happen at night - by administering certain hormones.
他通过注射特定的激素，解决了如何控制啮齿类动物的排卵。令人恼人的是，这样的工作经常要晚上做。
For successful rodents control in suburbs, the rats killing with rodenticide must be in combination with improving of general sanitary.
农村灭鼠必须把毒鼠和改造环境结合起来，方能有效控制鼠害。
Objective To study the Characteristics of community structure of rodents at different habitats in Guangzhou, provide scientific basis for rodent control.
目的了解广州市各环境的鼠类群落结构特征，为鼠害控制提供依据。
Conclusions to grasp species and distribution of rodents in Zhangjiakou basically, and to provide scientific foundations for drawing up prevention and control measures of rats harm.
结论基本掌握了张家口市啮齿动物的种类分布，为制订各种鼠害防治措施提供了科学依据。
The result shows that the control effect of the Chlorophacinone bait against the shrew is good, coming up to 85%, by using tracking determinations, while that against the rodents is only 39.6%.
试验采用连续饱和法布放毒饵，结果粉迹法测得对臭鼩鼱的灭效为85%，而对鼠类只有39.6%。
The species, distribution, damage and control measures of the forest pest rodents in China were described. The major problems in the control at present and its study tendency were discussed.
该文系统地阐述了我国森林有害啮齿动物的种类、分布及危害的研究进展，论述了鼠害的防控措施，分析了当前防治工作中的重点问题和研究热点。
Pet cats could influence the commensal rodents in some way, but they could not control the pest rodents.
养猫虽对家鼠有一定影响，但远远不能消除鼠害。
Objective To study the community structures and control strategies of the rodents left, and its seasonal variations in 4 different docks of Xiamen Port.
目的对厦门港区4种类型码头即集装箱码头、散货码头、煤码头和客运码头的残存鼠群落结构进行研究，以探索防制对策。
Objective for exploring the species, distribution and dynamic of rodents in farm field in Anhui province, and providing the science foundation for rodents control.
目的了解安徽省农区害鼠发生种类、分布及发生规律，为科学防治提供依据。
Object: to probe into the rule and inquire into the density restorative situation of domestic rodents population, which would aid for institution of effective measures in rodent's control.
目的：探讨灭鼠后家鼠数量恢复情况和规律，为制定灭鼠巩固措施提供依据。
Object: to probe into the rule and inquire into the density restorative situation of domestic rodents population, which would aid for institution of effective measures in rodent's control.
目的：探讨灭鼠后家鼠数量恢复情况和规律，为制定灭鼠巩固措施提供依据。
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