查询词典 pathogenic factor

The results show that in the processes of shake 2out and finishing , molding , sand preparation , pouring , melting and coremaking , all the dusts are silica2 containing dust . The respirable dust （ 5 μm） occupies as high as 6915 %~ 78 %. Silica2containing dust in foundry air is not packed by Al. It indicates that silica dust in foundry air is fresh and highly pathogenic.

结果表明，清理、造型、配砂、制芯、熔化和落砂等工序游离SiO2 含量均超过10 %，分散度小于5μm的可吸入性粉尘偏高（6915 %~78 %），空气中矽尘没有Al 的包裹，是新鲜的粉尘，致病性强。

In this work, with the bilateral carotid artery stroke model in Mongolian gerbils, the production and changes of NO and ROS in the pathogenic process of stroke were investigated, and the protective effects and mechanism of Crataegus extracts , a kind of natural antioxidant, on the ischemia/reperfusion damage were also studied.

本工作以蒙古沙鼠双侧颈动脉结扎引起的脑损伤中风模型，研究了中风病程中活性氧和一氧化氮的产生变化，同时探索了一种天然抗氧化剂—山楂提取物(Crataegus Extracts，CE)对缺血再灌注脑损伤的保护作用及机制。

Methods: A cyclohexyl group introduced and a series title compounds synthesized All of them were confirmed by MS, 1H-NMR, et al. The antifungal activities were also evaluated against the eight common pathogenic fungi.

引入环己基侧链结构，合成一系列目标化合物，所有化合物结构均经MS、1H-NMR等谱确证；选择8种真菌为实验菌株，测定其体外抗真菌活性。

The alkaloid extract of Cynanchum komarovii had antibacterial effect on animal pathogenic bacterium.

结论］牛心朴子生物碱提取物对动物致病菌有一定的抑菌效果。

The distinct cytopathological characters in the cells infected by different isolates were not observed, and more research on the pathogenic variation should be worked on.

RDV不同分离株侵染寄主植株的细胞病理特征无显著差异，对其致病性的差异需进一步研究。

Advance of the cytopathological characterization of main tobacco virus diseases and molecular biology of main pathogenic viruses of tobacco will be summarized, and next study work on the tobacco virus diseases in Yunnan will be suggested.

对烟主要病毒病的细胞病理特征及主要病毒病原的分子生物学研究进展进行了简要综述，对云南烟草病毒病研究存在的问题和下一步的深入研究开展了探讨。

Methods Allergic contact dermitis mice models were divided into model group,control group,large,medium,and small doses groups,and blank group. The changes of serum IL-2、TNF-α and histological pathogenic change before and after treatment were observed.

方法采用变应性接触性皮炎小鼠模型，分为模型组，对照组及大、中、小剂量组和空白组，观察各组治疗前后血清IL-2、TNF-α的变化。

NY1 was also strongly pathogenic to the weeds C. virgata and Digitaria sanguinalis but had light or no pathogenicity to most crops.

菌株NY1对马唐和虎尾草也有很强致病性，但对于大多数供试栽培植物致病性很弱或无致病性。

Where any new veterinary drug researcher violates the present Regulation by discretionally using the first category of pathogenic microorganism without meeting the provided conditions or by failing to be approved prior to the laboratory stage, it shall be ordered to cease its experiment, and a fine of not less than 50,000 Yuan but not more than 100,000 Yuan shall be imposed in addition.

违反本条例规定，研制新兽药不具备规定的条件擅自使用一类病原微生物或者在实验室阶段前未经批准的，责令其停止实验，并处5万元以上10万元以下罚款；构成犯罪的，依法追究刑事责任；给他人造成损失的，依法承担赔偿责任。

The antimicrobial test and researched was done on wide distillation of different solvents on Terpenoid, polarity separation of ethanol distillable substance, thin layer chromatography of different polarities and distillation of amylase. The results showed that the active substance distilled by 95% ethanol and V methanol: toluene=3:1 had stronger antimicrobial activity on Agaricus blazei Murrill. The antimicrobial activity of ethyl acetate was stronger than wide distilling substance with ethanol, but the water part has not antimicrobial effect. Two straps of ethyl acetate phase（Rf0.57、Rf0.63）(0.1g/ml)had stronger antimicrobial activity on Agaricus blazei Murrill, the antimicrobial zone on Pseudomonas was 19.3mm. The bacteriostatic activity of chromatography strap of water phase was rather weaker, the water solution (0.5g/g) of amylase had better effect on pathogenic fungus of Agaricus blazei Murrill, its antimicrobial zone on Aspergillus niger, Citrinin, Trichoderma viride were 10.8 mm, 7.9 mm, 5.3 mm.

通过对日本凹顶藻以不同溶剂的粗提、乙醇提取物的极性分离、不同极性的薄层层析和多糖的提取，进行抗菌试验的研究，发现95%乙醇和V甲醇：甲苯为3∶1的提取的活性物质具有较强的抗姬松茸的病原细菌活性，乙酸乙酯相对病原细菌的抑菌强于乙醇的粗提物，而水相基本无抑菌效果，乙酸乙酯相的两个带（Rf0.57、Rf0.63）浓度为0.1g/ml具有较强抗姬松茸病原细菌的活性，对假单孢杆菌抑菌圈达到19.3mm，水相层析带的抑菌活性较弱，多糖的粗提物配成0.25g/g的水溶液对姬松茸病原真菌有较好的抑菌效果对黑曲霉、桔青霉和绿色木霉的抑菌圈分别达到10.8 mm、7.9 mm、5.3 mm。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。