查询词典 beetle

And it is a hot topic in the field of bark beetle ecology research in recent years.

也是近年来小蠹虫生态学研究的一个热门话题。

THE mountain bark beetle is a familiar pest in the forests of British Columbia.

山树皮甲虫是不列颠哥伦比亚省森林里常见的害虫。

As with the mountain bark beetle, it is not entirely clear why this is happening.

至于山地树皮甲虫，现不完全清楚为什么会发生这种虫害役情。

He could see the beetle under the bark, and draw it forth unharmed for us to squint at through the magnifying glass.

他能看到树皮下的甲虫，并把它毫发无伤地捉下来，放在放大镜下让我们看。

Since the mid-1970s, about 50 percent, or 1 million acres (400,000 hectares), of the Kenai Peninsula's adult spruce trees have succumbed to the spruce bark beetle.

自从20世纪70年代中期，大约50％，或100万英亩（400，000公顷），奇奈半岛的成年云杉树已经屈服于云杉树皮甲虫。

Bark beetle is one of approximately 220 genera with 6,000 species of beetles in the family Scolytidae, which is the most common and important pest infesting forest.

小蠹虫是鞘翅目小蠹科昆虫的总称，全世界约有220属，6000种左右，是林木害虫中一个极重要类群。

At present,restricted by customs clearance time and quarantine facility,the main method of bark beetle quarantine is to check the cargo with eyes and hand.It is hard to avoid oversight with the backward technology.

由于其在木材和树皮下危害，使得小蠹虫随木材进口和各种货物木质包装材料在国际间传播的机会大大增加，因此具有十分突出的检疫重要性。

Feasibility study on application of DNA bar-coding technology in molecular identification of ScolytideaCO I gene of 15 bark beetle species collected from different regions and host is studied to discuss the feasibility of application of DNA bar-coding technology in Scolytidea molecular identification.

基于线粒体COⅠ基因的DNA条形码技术应用于小蠹科昆虫分子鉴定的可行性研究通过对采自不同地区、不同寄主的15个小蠹虫样本的线粒体COⅠ基因研究，对基于线粒体COⅠ基因的DNA条形码技术应用于小蠹科昆虫分子鉴定的可行性进行了探讨。

In the experiment,EAG technology was used to study the olfactory response of three typical bark beetle species to each one of the semiochemicals at different concentration,and the walking responses of the three species to each one and the different combinations of the semiochemicals were observed by using Y-tube olfactometer.

本研究通过触角电位技术，研究了3种具有代表性的小蠹虫对不同信息化合物及其不同浓度的EAG反应，并结合"Y"型嗅觉仪测定了3种小蠹虫对不同信息化合物及其组合的趋向反应。

Although each of the 11 species of the bark beetle had its own spatial niche and overlogs niche, they could attain competitive equilibrium and coexistance according to their requirment for different nutrition and space, the interference of population density and the different time interval attacking the host tree.

虽然，这11种小蠹虫具有各自不同的生态位宽度，且存在不同程度的生态位重叠，但各小蠹虫可依据其对寄主树木营养和空间需求的不同、种群密度的相互制约，以及入侵寄主树木时序的差异达到竞争的平衡和共存。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。