Natural enemies , especially species of Torymidae, are considered as efficient biological control agents.

Physical, chemical and biological control and curative measures are discussed.

介绍了从物理 、 化学和生物方面出发所采取的防治措施.

Scope: Vector for biological control work. Vectorbiological control work.

经营范围: 病媒生物防治工.

This chapter is spent on three classic case of successful biological control.

本章着重于生物防治的三个成功的经典例子.

Biological control is an ecologically sound approach to pest suppression.

生物防治是一种生态学上的很好解决为害物的方法.

Biological control has been used in many parts of the world.

生物防治曾经在世界许多地方使用.

The protection planning of birds is an important part of the protection of urban biological diversity.

鸟类保护规划是城市生物多样性保护的重要组成部分.

These external species can seriously threaten and destroy the ecological environment and biological diversity.

这些外来物种会对入侵地的生态环境及生物多样性造成极其严重的威胁和破坏.

Ex situ Conservation of Biological Diversity is a important way besides In situ Conservation.

生物多样性非原生境保护是原生境保护之外的重要途径.

It can be a reference for heavy metal pollution control and biological monitoring in water environment.

利用生物积累的特性,为重金属污染的防治及生物监测提供参考.

Biological warfare is terrible.

生物战很可怕.

But you couldn't possibly have known about the Japanese biological warfare experiments in Harbin!

但是你并不能知道日本人在哈尔滨进行的细菌战实验!

Biological warfare can cause far more damage than ordinary wars.

细菌战的破坏性可能远大于常规战争。

Our country refused to arm our soldiers with biological warfare.

我国拒绝用生物武器来武装我们的士兵.

The biological warfare caused the soldiers to drop like dead flies.

生物战让士兵像苍蝇一样纷纷跌落.

Speed is of the essence in successfully containing a biological warfare attack.

要想成功地扼制生物战袭击,速度十分重要.

A biological weapon could infect millions of people with a deadly disease.

生物武器可以让数百万人感染致命疾病.

Has Baxter International Released a New Biological Weapon in the Ukraine?

国际有没有在乌克兰放出新的生物武器?

Research progress on biologically active materials and their functions of mungbeans was reviewed in this pAper.

综述了绿豆生物活性物质及功能的研究进展.

It'seems, therefore , that facial ratio in men is a biologically honest signal of aggressiveness.

看起来男人的面部宽高比值从生理学上讲是其攻击性的真实信号.

Reduced products were analyzed by GC to determine of nitrogen-fixation activity in biologically compound fertilizer.

研究生物固氮活性,国际公认的方法是乙炔还原法.