pyrethrum

听听怎么读

英 [pa??ri:θr?m]

美 [pa?'riθr?m]

是什么意思

除虫菊，除虫菊杀虫剂；

变形

复数：pyrethrums

英英释义

pyrethrum[ pai?'ri:θr?m, -'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

学习怎么用

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...

随便看

英语词典包含168364条英汉在线翻译词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

单词	pyrethrum
释义	pyrethrum 听听怎么读英 [pa??ri:θr?m] 美 [pa?'riθr?m] 是什么意思 n. 除虫菊，除虫菊杀虫剂；变形复数：pyrethrums 英英释义 pyrethrum[ pai?'ri:θr?m, -'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 学习怎么用双语例句用作名词(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...
随便看	ti tia tiamat Tiamo tianjin tiar tiara tiaraed Tiber Tiberius Tibet Tibetan tibia tibiae tibial tibial nerve tibialis tibias tibiotarsus Tiburon tic tic-tac-toe tical Tice Ticino 鏵鏌鎘鎭鎖鎛鎧鎗鎿鏈作ります、造ります売ります知ります住みます研究します知っています住んでいます資料カタログ時刻表渡辺美佐綿貫民輔和田信業和田勉和田誠和田義盛度会延佳渡哲也亘理元宗和知鷹二 hydroelectricIELTS重点词汇 hydroelectricityIELTS重点词汇 hydrogenIELTS重点词汇 hygieneIELTS重点词汇 hygienicIELTS重点词汇 hype hyperlink hyphen hypnotism hypnotist 重登黄鹤楼兰花报春春色喜鹊闹雪东护城河啊,我想起它从前的模样啊,迟来的雨竟是在秋天游磨山观磨山盆景香樟红叶夜游白云湖