查询词典 pyrethrum insecticide

Hexachlorocyclohexane is a broad spectrum insecticide still used in some of the developing countries, though developed countries have banned or curtailed its use.

六六六是一种广普的杀虫剂，尽管发达国家已经禁止或限制，却一直在发展中国家应用。

Hexachlorocyclohexane is an organochlorine insecticide,it has been listed recalcitrant worldwide pollutant due to its toxicity, environmental persistence.

六六六（γ-Hexachlorocyclohexane，γ-HCH）是一种有机氯杀虫剂，由于它具有持久性和很高的毒性，成为顽固性的世界性污染物。

Key words Pyrethroid, Isoxazole, Insecticide, Synthesis, Bioactivity

张田林 男，38，教授，博士，主要从事医药中间体合成及有机溴阻燃剂的研制。

Random outbreak of lysogenic bacteriophage from Bacillus thuringiensis was very harmful to the production of Bacillus thuringiensis insecticide.

溶原性噬菌体的随机爆发是微生物杀虫剂苏云金芽孢杆菌(Bacillus thuringiensis， B.t)发酵生产的首要危害。

The fact that the fruit and bark of plant belonging to family Melia could be used as digestive tract-parasiticide and agricultural insecticide was recorded about two thousand years ago in ancient China.

摘 要：利用楝属植物皮和种子治疗消化道寄生虫病和防治农业虫害，早在两千年前的中国古代已有记载。

More specifically, our analyses show that Bt cotton has become a source of mirid bugs and that their population increases are related to drops in insecticide use in this crop.

由于蝽科虫子会吃范围广泛的植物，Lu及其同僚说，这种害虫现在第一次成为对其它作物（其中包括葡萄、苹果、桃子和梨）的一种威胁。

More specifically, our analyses show that Bt cotton has become a source of mirid bugs and that their population increases are related to drops in insecticide use in this crop.

经基因工程改造的可抒发来自苏云金芽孢杆菌蛋白的农作物每每被称作Bt作物，这些作物可增加农作物的产量并同时降低虫害以及对其它杀虫剂的需求。

If the fish have not improved within 5-7 days, perform a 50% water change and treat with formalin or an organophosphate insecticide used for removing the monogenetic flukes.

如果鱼没有改善， 5-7天内，执行50 ％的水分变化和治疗与福尔马林或一有机磷杀虫剂用于消除

Several hay caving in wardrobe, bookcase, can insecticide mothproof, aroma that lingers years.

放几棵干草在衣柜、书柜里，能驱虫防蛀，香味几年不散。1999年薰衣草被国际香草协会选为年度香草

Five synthesis methods of the third generation nicotinic insecticide-dinotefuran are discussed.

叙述了第三代烟碱类杀虫剂呋虫胺的5种合成方法。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"