查询词典 moth

Diamondback moth larvae hatch in early often leaves into the upper and lower epidermis mesophyll between the feeding to form a small tunnel, but the food is very small, not easily found.

小菜蛾初孵幼虫往往钻入叶片上、下表皮之间取食叶肉，形成小的隧道，但食量很小，不易被发现。

The value of EC90 of 80% dimethomorph WG's control of cucumber downy mildew was 58.32 mg/L, and the value of LC50 of 80% fipronil WG samples on diamondback moth was 0.5196 mg /L, which meaned the indoor toxicity of the two WGs reached the level of the best foreign similar products.

制得的80%烯酰吗啉WG防治黄瓜霜霉病的EC90值为58.32 mg/L，80%氟虫腈WG样品对小菜蛾的LC50值为0.5196 mg/L，室内毒力达到了国外同类制剂最好产品水平。

One fragment of 248 bp cDNA of the GABAa recep tor gene from the fourth instar larvae of diamondback moth was amplified, cloned, sequenced and analyzed by using reverse transcription polymerase chain reaction method.

利用反转录多聚酶链式反应对小菜蛾的γ-氨基丁酸a 受体基因cDNA片段进行了克隆和序列分析。

The effects of biological agents against the diamondback moth,Plutella xylostllaL.

应用昆虫生命表技术，评价了5个生物制剂对小菜蛾种群的控制作用。

The orientation of diamondback moth and Cotesia plutella to the vegetable volatiles was investigated using Y-tube olfactory in the lab.

采用&Y&型管嗅觉仪，在实验室条件下，对十字花科蔬菜-小菜蛾-小菜蛾绒茧蜂系统中，害虫和寄生蜂对挥发物的定向行为进行了初步的研究。

By taking optimization for culture media of diamondback moth as example,theoretical research of SVR model in media optimization was carried out.Based on initial composition,Secondary Leave-one-out was carried out after kernel optimization and descriptors screening,the precision is higher than linear regression model,it is showed that SVR is proper for media optimization.

本文首先以文献报道的小菜蛾饲料配方优化数据为例，建立基于SVR优化配方、分析因子效应的方法学：从原始配方样本集出发，以SVR进行核函数寻优和自变量筛选后实施双重留一法预测，预测精度优于多元线性回归模型，表明非线性的SVR更适合用于优化配方。

Toxicity of emamectin to larvae of the diamondback moth, Plutella xylostella, at different temperatures was surveyed, and the effects on survivors of parent generation treated with sub-lethal dosage of the insecticide at 25℃ were studied with life table method.

研究了不同温度下埃玛菌素对小菜蛾Plutellaxylostella幼虫的毒力，并用生命表法研究了 2 5℃下埃玛菌素亚致死剂量(LC30 )处理小菜蛾 3龄初期幼虫后对其子代的影响。

This shows that spraying vegetables at the early instar larval stage with Abamectin+Indoxacarb 4.75 % WP(1: 1 000～1 500) and Emamectin benzoate 0.2 % EC(1: 1 000) can effectively control the diamondback moth.

研究认为，在低龄幼虫时使用4.75 %阿维·茚虫威WP 1 000～1 500倍或0.2 %高渗甲氨基阿维菌素苯甲酸盐EC 1 000倍防治小菜蛾，可以有效控制小菜蛾的发生危害。

Dull-colored moth whose larvae have tufts of hair on the body and feed on the leaves of many deciduous trees.

深色的蛾子，其幼虫的身体上有簇毛，吃许多落叶树木的树叶。

Small dull-colored moth with chewing mouthparts.

深色的小蛾子，有善于咀嚼的口器。

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。