类

In microwave condition Ce~(4+) may oxidize sulfur compound such as the benzothiophene mainly in diesel fuel into sulfonea for the first time. By choosing proper solvent DMF to extract sulfonea, thus in microwave condition sulfur content in diesel fuel is reduced from 554ppm to 96ppm, up to 82.7% desulfurization ratio.

3微波条件下首次使用Ce~(4+)来氧化柴油中的硫化物并把这类硫化物氧化成砜类化合物，再选用合适的溶剂DMF，把这些砜类化合物通过萃取的方法除去，微波条件下的氧化脱硫可以将柴油中的硫含量从554ppm降到96ppm，达到82.7％的脱硫率。

Under supersonic condition Ce(superscript 4+) may oxidize sulfur compound such as benzothiophene in diesel fuel into sulfonea. By choosing a proper solvent to extract sulfonea, the sulfur content in diesel fuel is reduced from 554 mg/L to 25 mg/L with a desulfurization ratio of 95.5% and the sulfur content of diesel oil by oxidization is in line with the quality standard of diesel oil in World Fuel standard Ⅲ.

首次超声条件下使用Ce(上标 4+)氧化柴油中的硫化物，并把这类硫化物氧化成砜类化合物，再选用合适的溶剂将这些砜类化合物通过萃取方法除去，使柴油中的总硫含量从554mg/L降到25mg/L，达到了95.5%的高脱硫率。

In supersonic condition Ce~(4+) may oxidize sulfur compound such as benzothiophene mainly in diesel fuel into sulfonea for the first time. By choosing proper solvent to extract sulfonea, thus sulfur content in diesel fuel is reduced from 554mg/L to 25mg/L, up to 95.5 % desulfurization ratio and the sulfur content of diesel oil by oxidization meet to the quality standard of diesel oil in World Fuel standard III.

2在超声条件下首次使用Ce~(4+)来氧化柴油中的硫化物并把这类硫化物氧化成砜类化合物，再选用合适的溶剂DMF，把这些砜类化合物通过萃取的方法除去，从而将柴油中的总硫含量从554ppm降到25ppm，达到95.5％的高脱硫率。

The results of bioassay suggest that 2-methylthio-6-methyl-4-substituted pyrimidine and 4, 6-dimethoxy-2-substituted pyrimidine derivatives show herbicidal activity. In these target compounds, 4, 6-dimethoxy-2-substituted pyrimidine benzylamine and 4, 6-dimethoxy-2-Substituted pyrimidine benzylidene amine exhibit good herbicidal activity, and the herbicidal will be affected by the substituents in the benzene ring.

对分子库中的目标分子进行了生物活性筛选研究，发现其中的2-甲硫基-6-甲基-4-取代嘧啶衍生物和4，6-二甲氧基-2-取代嘧啶类化合物显示出除草活性，其中4，6-二甲氧基-2-取代嘧啶苄胺类化合物和4，6-二甲氧基-2-取代嘧啶亚苄胺类化合物具有较好的除草活性，而且其活性和苯环上的取代基有关。

Place kind, basic necessities of life kind, make friend, chat of these categories, these likelihoods are betterer than general category if see long term word,be such.

地方类的、衣食住行类的、交友、聊天这些类别的，这些可能比一般的类别好一些假如看长线的话是这样。

The major results obtained are: PCR-RFLP method is suitable for molecular identification of Shihu; 205 compounds were isolated from 10 species of Dendrobium, including 21 new compounds, and 28 compounds isolated from genus Dendrobium for the first time. Each of the extracts and compounds were screened for anticoagulant and antitumour activities separately. The results indicated that the ethyl acetate extract from Dendrobium chrysanthun has significant anticoagulant function; the antitumour function of the 4 bibenzyl components from Dendrobium chrysotoxum is stronger than that of phenanthrene, of which the erianin has significant anti-angiogenic effect both in vivo and in vitro; components with moderate or stronger antitumour activities were found in the extracts of D. thyrsiflorum, D. chrysanthun and D. trigonopus; quality standard for 5 species of Dendrobium was drawn up use active or indicative components as control.

重要研究结果有：经方法学研究，认为PCR-RFLP法适于作为石斛属药材分子标记鉴定方法；对10种石斛进行化学成分分离鉴定，共分得205个化合物，其中新化合物21个，首次从石斛属分得的28个；对提取物和各单体化合物分别作抗凝血、抗肿瘤等活性筛选，结果说明束花石斛乙酸乙酯部位有显著的抗凝血作用，鼓槌石斛的4个联苄类成分抗肿瘤作用强于菲类，联苄类毛兰素在体内外有显著抗血管生成活性，球花石斛、束花石斛及翅梗石斛均筛到中等或较强抗癌活性的成分；选择有活性或指标性成分作对照品，对5种石斛草拟了质量标准。

Results: 43 cystic renal occupying lesions were found in 37 patients, According to ultrasound diagnostic criteria, l3 were hypoechogenic, l7 were isoechongnic and l3 were hyperechogenic. Category of these lesions under CT examination was based on the Bosniak system. 26 lesions of class Ⅱwere found in 24 patients, 12 lesions of class Ⅲin 8 patients and 5 lesions of class Ⅳ in 5 patients . Open operation was done on 18 cases including 4 cases of renal carcinoma.

结果：37例复杂性囊性肾脏，发现肾脏占位病变43个。B超以低回声为主病变13个，等回声病变为主17个，高回声病变为主13个；CT诊断Ⅱ类囊性病变24例（26个），Ⅲ类囊性病变8例（12个病变），Ⅳ类囊性病变5例（5个病变）；手术18例，其中4例为肾脏恶性肿瘤。

It can simplify the signal identification and classification of boxlike parts. Operation drawing is a key technique of CAPP system. In this paper, the author has explored an efficient drawing method, thus the operation drawing of boxlike part CAPP system can be generated automatically.

将人工神经网络应用于箱体类零件的CAPP系统中，简化了零件的信号识别和分类；工序图是箱体类零件的CAPP系统的一个关键技术，本文探索一种有效的绘图方法，使箱体类零件的CAPP系统能自动生成工序图。

T he Brassicaceae vegetable, include the vegetable such as Chinese cabbage , cabbage, mustard plant and radish etc., is an our country everywhere plant most extensively, eat the most widespread vegetable category.

十字花科蔬菜包括白菜类，甘蓝类，芥菜类和萝卜等蔬菜作物，是我国各地种植最广泛，食用最普遍的蔬菜种类。

Objective To investigate the association between HLA classⅡgenes and bullous pem-phigoid.

近年来的研究证实自身免疫性大疱病中的天疱疮与HLA-Ⅱ类基因相关，而有关类天疱疮与HLA-Ⅱ类基因相关性的研究仅有少量报道。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。