pyrethrum
n.
除虫菊，除虫菊杀虫剂；
变形
复数：pyrethrums
英英释义
pyrethrum[ paiə'ri:θrəm, -'re- ]
n.
made of dried flower heads of pyrethrum plants
white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
同义词：Dalmatian pyrethrumDalmatia pyrethrumTanacetum cinerariifoliumChrysanthemum cinerariifolium
spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers; source of an insecticide; sometimes placed in genus Chrysanthemum
同义词：painted daisyTanacetum coccineumChrysanthemum coccineum
used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
同义词：genus Pyrethrum
双语例句
用作名词(n.)
This article draws up the pyrethrum ester insecticide.
本品是拟除虫菊酯类杀虫剂。
权威例句
Pyrethrum flowers and pyrethroid insecticides.Pyrethrum Flowers. Production, Chemistry, Toxicology, and Uses
Malabaricane derivatives from Pyrethrum santolinoides
Separation of natural pyrethrum extracts using micellar electrokinetic chromatography.
Constituents of pyrethrum flowers; synthesis and relative toxicity of two isomers of cinerin I.
Constituents of Pyrethrum Flowers. XXIII. Cinerolone and the Synthesis of Related Cyclopentenolones
SOME COMPOUNDS RELATED TO SESAMIN: THEIR STRUCTURES AND THEIR SYNERGISTIC EFFECT WITH PYRETHRUM INSECTICIDES
Evaluation of antimicrobial and antioxidant activities of solvent extracts of Anacyclus pyrethrum L., from Algeria
Immunostimulating activity of the hot water-soluble polysaccharide extracts of Anacyclus pyrethrum, Alpinia galanga and Citrullus co...
Genotoxic effects of pentachlorophenol, lindane, transfluthrin, cyfluthrin, and natural pyrethrum on human mucosal cells of the infe...
1. Bamboo vinegar, potash soap and suspending agent of sulfur could increase the effect of Natural Pyrethrum, Baicao I and Kingbo for L. clerkella.
竹醋液、软钾皂和硫悬浮剂作为辅助药剂一定程度上能够增强除虫菊、清源保和百草一号的药效。
www.dictall.com
2. Pyrethrum possesses some ideal characteristics of environmental compatible chemical pesticide, however its photo lability and expensive price limit its broad use in the field.
天然除虫菊酯虽然具有理想化学农药的一些特性，但光不稳定性和昂贵的价格限制其大面积使用。
dict.cnki.net
3.
www.dictall.com
4. Objective To observe the efficacy of natural pyrethrum mosquito coil against Culex pipiens pallens by bioassay.
目的通过生物测试，观察天然除虫菊素盘式蚊香对淡色库蚊的药效。
dict.cnki.net
5. The output of some export crops, notably cashews, cotton, and pyrethrum, fell drastically.
有几种出口农作物，特别是腰果、棉花和除虫菊的产量大幅度下降。
tr.bab.la
6. Pyrethrum impregnated bed nets were effective for control of malaria and it is an important measure for management of floating population.
用除虫菊酯浸泡蚊帐防治疟疾及传疟媒介获得良好效果，可作处理流动人口疟疾疫点的重要措施。
dict.cnki.net
7. To evaluate the immune toxicity of natural pyrethrum.
目的检测天然除虫菊酯的免疫毒性。
dict.cnki.net
8. The paper introduced the principle , the test conditions and the operation steps of drying the pyrethrum flower ;
本文主要介绍了除虫菊鲜花的真空冷冻干燥技术的原理、条件和操作步骤。
dict.cnki.net
9. The pyrethrins are mainly synthesized in pyrethrum flowers and the content is more than 95%. The content in the dried flowers is about 1.2-2.0%.
除虫菊素主要在除虫菊花中合成，其含量占整个植株的95%以上，而干花中除虫菊素含量在1.2-2.0%。
www.fabiao.net
10. Other crops have Joan hemp, corn (maize), all kinds of beans, banana, cinnamomum bark, cotton, pyrethrum and potatoes.
其他作物有琼麻、玉米（玉蜀黍）、各种豆类、香蕉、金合欢树皮、棉花、除虫菊和马铃薯。
xkyn.net
11. Improving the content of pyrethrins in pyrethrum through genetic engineering technology is restricted, for little is known about pyrethrins-related genes.
但国内外对于天然除虫菊素合成相关基因的研究很少，从而制约了利用基因工程技术提高除虫菊花中除虫菊素的含量。
www.fabiao.net
12. The plant materials are materials such as Sophora flavescens, tobacco, Indian chinaberry fruit, pyrethrum, climbing groundsel or Aztec marigold, etc.
植物原料是指苦参、烟草、印楝子、除虫菊、千里光或万寿菊等。
ip.com
13. Extracted pyrethrins from pyrethrum dried flower by super critical CO2 .
采用超临界CO2萃取除虫菊中有效成分除虫菊酯。
dictall.com
14. Extracted pyrethrins from pyrethrum dried flower by super critical CO2 .
采用超临界CO2萃取除虫菊中有效成分除虫菊酯。
dictall.com
15. Anacyclus pyrethrum
南欧派利吞草
-- 来源 -- 英汉 - 翻译参考[网络]
16. Pyrethrum cinerariifolium
除虫菊
-- 来源 -- 英汉 - 短句参考
17. made of dried flower heads of pyrethrum plants.
用除虫菊植物的干花头制成。
-- 来源 -- 汉英 - 翻译参考
18. pyrethrum extract
除虫菊萃
-- 来源 -- 英汉 - 翻译参考[网络]
19. pyrethrum powder
除虫菊粉
-- 来源 -- 英汉 - 翻译参考[网络]
20. white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum.
生长于巴尔干半岛的除虫菊，它羽状的叶子下面是白色的且有丝质的绒毛；可制杀虫剂；有时归为菊类。
-- 来源 -- 汉英 - 翻译参考
21. synthetic pyrethrum powder
合成除虫菊粉
-- 来源 -- 英汉 - 翻译参考[网络]
22. pyrethrum extract refinery
除虫菊提炼厂
-- 来源 -- 英汉 - 翻译参考[网络]
23. A small Mediterranean plant(Anacyclus pyrethrum)containing a volatile oil once used for the relief of toothache and facial neuralgia.
欧蓍草一种地中海地区的外形较小的（紫菀科南欧派利吞草）植物，含有一种曾用于减缓牙痛或面部神经痛的易挥发的油
-- 来源 -- 英汉 - 短句参考
24. The output of some export crops, notably cashews, cotton, and pyrethrum, fell drastically.
有几种出口农作物，特别是腰果、棉花和除虫菊的产量大幅度下降。
-- 来源 -- 英汉 - 辞典例句
pyrethrum
