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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。

sick euthyroid syndromeshould be often found in patients with critical trauma,but it is commonly confused ses with retention of fluid in third space after fluid resuscitation or with lowed colloid osmotic pressure as result of hypoproteinemia in the clinic.serious ses is presented an edema of face and all over,non blood fluid draining out of the needle hole,the wound not healing desiredly with fluid oozing unexpectedly,or pleural effusion on both sides,or pericardial effusion.the pathogenesis of ses is incompletely understood.the inflammatory cytokines are generally accepted as an important pathogenic factor of ses.

甲状腺功能正常性病变综合征（sick euthyroid syndrome，ses）在危重创伤患者中并不少见，严重者表现为颜面及全身肿胀，针眼可见持续的非血性液体流出，伤口渗液较多不易预期愈合，双侧胸腔积液或心包积液等。临床上常与液体复苏后的第三间隙液体潴留、低蛋白血症致胶体渗透压降低等的临床表现相混淆，很容易被忽略。其发病机制还不十分清楚，众多的研究首先考虑的致病因素是炎性因子。

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。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷