查询词典 insects

Insects having usually a single pair of functional wings with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing.

通常有一对实用翅膀的昆虫，后翅退化为小圆块，嘴分裂适于吮吸或舔食或刺穿。像疯狗一样发疯

Insects having usually a single pair of functional wings with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing.

通常有一对实用翅膀的昆虫，后翅退化为小圆块，嘴分裂适于吮吸或舔食或刺穿。

In this paper , the species resources and genetic diversity of lac insects were briefly introduced , and

本文将在紫胶虫物种、遗传多样性和生态环境的基础上讨论紫胶虫生物多样性

Have led to high species diversity and genetic diversity of lac insects , which provide good condition for lac pro2

我国紫胶虫物种和遗传资源丰富，生态环境类型多样，为紫胶虫资源的可持续利用提供了

The experimental results for three hygyenic insects show that: LC50 of Py902 and Py903 is 6.8 ×10-3ppm and 6.7 ×10-3 ppm for Larve of Culex pipiens pallens.

经对3种卫生害虫试验，结果表明：氟炔菊酯（PY902）对淡色库蚊幼虫LC50为6.8×10－3ppm

As for the density of species, they are differences in the density of insects, but ants, Lasius niger are the dominant species for their maximum density.

就各目的种的密度来说，昆虫的密度存在差异，但蚂蚁、黑蚁的密度最大为优势种。

Toxicity, mode of action and field efficacy of HNPC-A2005 was evaluated against the lepidopterous insects.

在此，就新农药HNPC-A2005对鳞翅目昆虫的杀虫活性及田间防治效果进行了研究。

Bioassay results at the laboratory showed that HNPC-A2005 had good stomach, contact, comprehensive action and a weak systemic activity to the lepidopterous insects such as orien...

室内生测结果表明，HNPC-A2005对粘虫和菜青虫等害虫具有优异的胃毒、触杀和综合毒力，且在试验过程中还发现该化合物具有对昆虫击倒快的特点，但内吸作用较弱。

The biological safety of Bacillus thuringiensis Strain YJ-2000 which acted the low toxicity to Bombyx mori newly hatched larvae and marked insecticidal activity to other lepidopterous insects was evaluated compared with other two Bt strains,i.e.

YJ 2 0 0 0菌株除导致 1龄幼虫历期延长 11 1%、取食量减少 0～ 6 0 0 %及体重降低 5 2 3%～ 6 2 5 %外，对 2龄及其以后各龄幼虫的存活率、发育历期、取食量、眠蚕体重、化蛹率、蛹期、全茧量、蛹重、茧层量、羽化率和产卵量等均无显著影响。

A lip or liplike structure, such as the one forming the roof of the mouth in insects.

唇或唇状结构，例如昆虫的唇部分

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。