查询词典 ground beetle

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。

Verbenol and verbenone are pheromone of bark beetle.

成虫可产卵。5。占总数的 89。

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.

由于受通关时间、检疫工具的约束，目前对小蠹虫的检疫方法仍主要以"目测、手检"为主，方法比较落后，容易出现疏漏，因此，应用新技术进行检疫已是当务之急。

The bark beetle species on Pinus armandi and their niches were studied in the middle areas of Qinling Mountains. The results showed that 19 species of bark beetles infecting and damaging Pinus armandi in pine ecosystem of Qinling Mountains were found, but only 11 species of them could be competitive and coexistent one another.

通过对秦岭林区海拔1600-2200m的中山地带华山松小蠹虫种类和生态位的研究，结果表明：在秦岭林区入侵危害寄主华山松的小蠹虫有19种，其中能构成竞争和共存的小蠹虫主要有11种。

Woodpecker is a well-known forest birds that feed, in addition to eradication of pests such as bark beetle larvae than its wood chisel marks can be used as an indicator of forest health logging, which is known as the forest a doctor.

啄木鸟是著名的森林益鸟，除消灭树皮下的害虫如天牛幼虫等以外，其凿木的痕迹可作为森林卫生采伐的指示剂，因而被称为森林医生。

Woodpecker Woodpecker is the famous forest birds that feed, in addition to eradication of pests such as bark beetle larvae than its wood chisel marks can be used as an indicator of forest health logging, which is known as the forest a doctor.

啄木鸟啄木鸟是著名的森林益鸟，除消灭树皮下的害虫如天牛幼虫等以外，其凿木的痕迹可作为森林卫生采伐的指示剂，因而被称为森林医生。

The attractants contain the components of host volatile,bark beetle\'s pheromone and the synthetic components of the host pathogen.

研究结果表明：(1)根据有关成分配制的引诱剂，在我国的主要进口木材上均能诱捕到小蠹虫。

He said firefighters were worried late Saturday about the fire moving farther north into the mountains, where drought and bark beetle infestation have killed thousands of trees -- turning them into kindling.

他说周六时火警们都非常担心大火从北进入山里，那里由于干旱和虫灾的侵扰，成千上万棵树木变成了易燃物。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？