杀虫剂的

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。

Mylabris phalerata, Meloidae family of Coleoptera, has been known since antiquity to produce a potent toxic defensive agent, known as cantharidin (exo,exo-2,3-dimethyl-7-oxabicyclo [2.2.1] heptane-2,3- dicarboxylic anhydride), but well-known as Spanish Fly. In the past, Cantharidin has used as anticancer, herbicidal, pesticide and treatment of hepatic carcinoma and molluscum contagiosum activities.

斑蝥为翘翅目芫青科斑芫青属的昆虫，主要成分为斑蝥素(Cantharidin； exo，exo-2，3-Dimethyl- 7-oxabicyclo [2，2，1] heptane-2，3-dicarboxylic anhydride)，研究中指出斑蝥素具有发泡、抗肿瘤的作用，或当作除草剂、杀虫剂、毛发生长刺激剂，目前临床上则用於治疗原发性肝癌及传染性疣。

As a result of human activities such as mining and smelting of metalliferous ores, electroplating, gas exhaust, energy and fuel production, fertilizer and pesticide application, etc., metal pollution has become one of the most serious environmental problems today.

由于人类活动，例如采矿和金属矿石的冶炼，电镀，能源和燃料生产，肥料和杀虫剂应用，等等，金属污染变成今天最严重的环境问题之一。

Therefore,main composition of ordinary mosquitocide has been increased over the past.

因此，如今的杀虫剂、蚊香中的有效成分比过去有所增加。

The mineral oil pesticide diluted at 100 and 200 times all had significant lethal effect on L.imitate nymphae, and would not produce the phytotoxicity on longan, so that could be used as medicament for controlling L.imitate of longan.

结论］矿物油杀虫剂100和200倍液对白蛾蜡蝉若虫均有明显的致死作用，且对龙眼不产生药害，可作为防治龙眼白蛾蜡蝉的药剂。

Due to the bad crystal habit and crystal size distribution of the product from the domestic factory and the higher content of impurities, the quality of copper sulfate pentahydrate has been affected by these factors.

五水硫酸铜是一种重要的无机化工产品，广泛应用于化学工业和电镀工业中，同时也作为动物饲料矿物添加剂和杀虫剂广泛的运用于农业。

It showed that exploiting new pesticidal microbial resources is of important significance.

这些自身特性都表明开发新型的微生物杀虫剂资源具有重要的意义。

The world's twentieth-century shift to high chemical-input farming was facilitated by high labor costs and low input costs, including land and chemicals, as well as a shift away from a stewardship approach to a productionist outlook, and it has been enabled by the economic treatment of environmental degradation and pesticide contaminations as externalities, rather than as costs of production.

二十世纪，世界上的农业转向高化学产品投入，它依靠高人力成本和低投入费用辅助，利用土地和化学产品，以及从管理工作方法到生产者前景转变，同时，它由环境退化和杀虫剂污染的经济处理作为外在形式，而不是作为生产成本。

Genetic site - directed mutagenesis is an important way in studying the relation of proteinic formation and function.

Bacillus thuringiensis 杀虫晶体蛋白的定点突变研究与细菌杀虫剂和转基因植物开发的关系。

ExxonMobil Chemical has worldwide resources available to help the Agchem industry reassess and reformulate pesticide s and herbicides.

埃克森美孚化工所拥有的全球化资源可帮助农用化学品工业生产出新的杀虫剂和除草剂并更新配方。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。