查询词典 insecticidal

Objective: To investigate toxicity of deoxypodophyllotoxin against 3rd instar larvae of Pieris rapae L. and its effects on activities of AChE and ATPase, and to study its insecticidal mechanism.

目的：研究脱氧鬼臼毒素对3龄菜青虫的毒杀作用及中枢神经系统AChE、ATPase活性的影响，探讨其杀虫机制。

A Bacillus thuringiensis strain Bt25 with high insecticidal activity against several primary lepidopteran pests in China was identified by PCR-RFLP system, and subsequently a novel cry1Aa gene was cloned from it by PCR techniques.

Bt25是中国自行分离的对小菜蛾具有高毒力的苏云金芽孢杆菌，经PCR-RFLP鉴定含有cry1Aa基因。

Its main insecticidal active components were weak polar matter and mainly distributed in the polarity range of petroleum ether.

不同极性萃取物的活性比较得知，杀虫活性成分主要是酯溶性的弱极性物质，分布在石油醚所在极性范围内。

This article discusses the patterns of phosphine , the directions for uses, the correlation of CT product with insecticidal rate and sealing.

本文就国内外广泛使用的磷化氢的剂型、施药方法、CT积与杀虫的关系及密封等方面进行探讨。

Ten insecticidal constituents of T. wilfordii were isolated by means of phytochemistry combined with bioassay method.

采用生物活性追踪和化学分离相结合的方法，对雷公藤根皮中的杀虫活性成分进行了系统的研究。

Early rotenone rotenone people from such plants are separated from the insecticidal activity of a substance, is one of three traditional plant-derived pesticides.

鱼藤酮是早期人们从鱼藤属等植物中提取分离出来的一种有杀虫活性物质，是三大传统植物性杀虫剂之一。

In recent years, the savin plant has been found that has excellent insecticidal activity.

近年来，中国还发现该植物是一种优秀的杀虫植物，并对其杀虫作用进行了较为系统的研究。

Series of β-sitosterol derivative are synthesized in order to select the more effective insecticide and to study the relationship between molecular structure and insecticidal activity.

为筛选更有效的杀虫剂，探明β谷甾醇的分子结构与杀虫活性之间的关系，合成了一系列的β谷甾醇衍生物。

Sitosterol is one of activity components of insecticidal in the Daphne genkwa.

谷甾醇是芫花中具有强烈杀虫活性的组分之一。

Strain＇E-916 not only kept the antagonistic action on rice sheathblight disease, but acquired the insecticidal activity to rice stem borer through genetic engineering.

杀虫和抑菌试验结果表明构建的工程菌对水稻二化螟具有杀虫活性，且保持了其原有对水稻纹枯病的拮抗性能。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。