查询词典 pyrethrum insecticide

Insecticide part I - Collect clues, solve puzzles and be quick on the draw as a six-legged detective in the world of INSECTICIDE.

杀虫剂I部分-搜集线索，解决的困惑与快速对抽签作为一个六足侦探，在世界上的杀虫剂。

Methods The irritability of insecticide to houseflies were carried out by insecticide irritability test.

方法杀虫剂兴奋度测定的方法。

Objective:To establish a method for determination of total flavonoids and luteolin in Pyrethrum tatsienense.

目的：建立藏药打箭菊中总黄酮及木犀草素的含量测定方法。

Supercritical carbon dioxide was used to extract pyrethrin from pyrethrum flowers.

采用超临界二氧化碳萃取除虫菊花中的有效成分除虫菊酯，设计了一个突然降压的过程，使除虫菊花的细胞壁破碎，减少过程的传质阻力。

Almost all the existent pyrethrum esters are prepared from the pyrethrinI and pyrethrin II almost has never been used.

现有的拟除虫菊酯品种，基本源出于除虫菊酯Ⅰ，而除虫菊酯Ⅱ中的第二菊酸及其酯却几乎未被利用过。

This review may provide a theoretical basis for further research and utilization of pyrethrum in China.

为国内进一步研究开发天然除虫菊提供了理论依据。

In Kenya , co-operatives are responsible for 45% of the GDP and 31% of national savings and deposits. They have 70% of the coffee market, 76% dairy, 90% pyrethrum, and 95% of cotton.

在肯尼亚，合作社对 GDP 的贡献达到45%，承担了31%的国民存款和储蓄，占有咖啡市场的70%，奶产品市场的76%，除虫菊市场的90%，棉花市场的95%。

In addition, a plant known pyrethrum contain pyrethrins, but also can effectively repel mosquitoes.

芦荟也是吸收甲醛的球员，我们可以吸收1％的甲醛在90立方米的空气中。

Made of dried flower heads of pyrethrum plants.

用除虫菊植物的干花头制成。

In Kenya, co-operatives are resp*****ible for 45% of the GDP and 31% of national savings and deposits. They have 70% of the coffee market, 76% dairy, 90% pyrethrum, and 95% of cotton.

在肯尼亚，合作社对GDP的贡献达到45%，承担了31%的国民存款和储蓄，占有咖啡市场的70%，奶产品市场的76%，除虫菊市场的90%，棉花市场的95%。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。