一旦实施了生物控制手段，它的速度就很难控制。
Once a biological control agent is released, it is difficult to control its speed.
根据法律规定，发放生物控制剂必须得到环境国务秘书的批准。
According to law, the release of the biological control agents must be authorized by the secretary of state for the environment.
当然，只有能够证明它们仅以目标杂草为食，生物控制剂才能安全释放。
Of course, biological control agents can safely be released only if it can be verified that they feed solely on the target weed.
人们已经开始努力确定使用昆虫作为生物控制手段的可行性，但仍认为有效的生物控制手段还需要数年时间。
Work has begun to determine the feasibility of using insects as biological controls, but effective biological controls are considered years away.
事实上，科学家已经掌握了评估生物控制蕨类植物的影响所需要的大量信息，但是这些信息在许多个人、组织和政府机构中传播开来。
In fact, scientists already have much of the information needed to assess the impact of biological control of bracken, but it is spread among many individuals, organizations, and government bodies.
“我们已经在生物控制方面做得很好了，”赖斯说。
目的探讨地震灾区消毒与病媒生物控制工作的准备策略。
Objective To investigate the strategy for the disinfection and vector control in the earthquake disaster area.
游戏背景为距今十分遥远的时代，各种巨型生物控制着地球。
Games ago for the very distant background of The Times, all kinds of biological control of the giant planet.
好氧高温堆肥是一种受微生物控制的有机物降解和转化的过程。
Theromophilic aerobic composting is a process of organic matter degradation and transformation controlled by microorganism.
目的为研究大壁虎运动及其生物控制提供附肢肌的定量形态资料。
Objective To provide morphological data of appendicular muscle for further research on the biological control systems of GekkogeckoSs motional function.
对不同等级的实验动物，应当按照相应的微生物控制标准进行管理。
Experimental animals of different classes shall be administered in accordance with the corresponding standards for controlling micro-organisms.
有一种观点认为它们总能逃避天敌，例如被寄生物控制于自己的居住范围。
One idea is that they've escaped their enemies, for example, the parasites that keep them in check on their home turf.
本发明还公开了筛选真菌分离株以确定它们是否具有生物控制活性的方法。
The present invention also discloses methods of screening fungal isolates to determine if they exhibit biocontrol activity.
摘要本文通过生物控制和化学控制提出了具有周期脉冲效应与害虫控制的捕食系统。
In this paper predator-prey systems with periodic impulsive effect concerning pest control are proposed through biological control and chemical control.
要重点强调全面的控制措施，包括减少来源(社区共同参与)、水管理、化学品及生物控制手段。
Emphasis should be on integrated control measures including source reduction (with community participation), water management, chemicals, and biological control methods.
本文主要概述了冷却肉的各种保鲜方法，以及成为冷却肉之前原料肉的微生物控制情况。
This paper Outlines a variety of preservative methods of chilled meat, and summarizes the microbial prevention of raw materials before turning into chilled meat.
进行微生物控制动态模拟试验，明确了废水回用于冷却循环水系统对系统的微生物的生长的影响。
The influence of the microbe growing of the coke plant wastewater reused to the cooling water system was clear by microbe controlling experiment.
因为发酵过程中微生物控制的非常好，此酒几乎没有经过过滤，使得此酒香气和颜色都非常的浓。
Due to the very intense microbiologic control this wine is very lightly filtered, what makes the aromas and color very expressive of Pinot Noir.
芦荟制品中乳酸的含量反映芦荟制品加工过程中微生物控制情况，也反映芦荟制品品质的变化情况。
The content of lactic acid in aloe products reflects the microorganism controls during the process of aloe products. It also reflects the products quality change of the aloe.
结合国家媒介生物控制的有关标准，与周边地区和已获国际卫生机场的三家机场进行对照分析研究。研究结果。
Combining with the national standard of the control of medical vector, the results are compared with periphery areas and three authenticated airports.
目的：探讨人羊膜在制备和保存过程中的微生物安全性及其控制，为建立羊膜库提供便捷、有效的微生物控制方法。
Objective: To evaluate the microbial safety of human amniotic membrane(HAM) in preparation and preservation, and to establish effective methods of microbe control for HAM bank.
作者针对“森林有害生物控制”课程的特点，将原属于“森林昆虫学”和“林木病理学”两门课程的内容全面整合；
Based on the course characteristics of Control to Forest Pests, a new course is developed, which combines original courses of Forest Entomology and Forest Pathology.
第三十五章，冷凝器，增加了水冷与空冷的对比，还有生物控制、制冷凝器、助电动机和不可压缩（体）清洗的信息。
Chapter35 condensers has added a comparison of watercooled versus air-cooled condensers and information on biological control brazed condensers pony motors and purging noncondensables.
然而，像绵羊或山羊之类的动物会吃杂草，因此它们可以起到生物控制作用。昆虫和其他生物也可以起到生物控制作用。
Yet animals like sheep or goats eat weeds, so they can provide a biological control. Insects and other organisms can also act as biological controls.
综述了目前切割果蔬中微生物的生物控制，包括采用微生物竞生菌株、噬菌体以及微生物代谢产物等进行微生物的生长控制。
This article summarized the current biocontrol on microorganism of fresh-cut fruits and vegetables, including applies of microorganism antagonists, phages and metabolizing products.
分析了循环冷却水中微生物的来源和危害，探讨了微生物污染的控制方法，介绍了不同微生物控制药剂在循环冷却水处理中的应用。
Microbe intake and its harm in recycle cooling water system are analyzed. Methods of controlling microbe are discussed. Different microbe-controlling agents are introduced in details.
分析了循环冷却水中微生物的来源和危害，探讨了微生物污染的控制方法，介绍了不同微生物控制药剂在循环冷却水处理中的应用。
Microbe intake and its harm in recycle cooling water system are analyzed. Methods of controlling microbe are discussed. Different microbe-controlling agents are introduced in details.
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