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In this paper, a series of 4,5-dithiacrown ether annulated 1,3-dithiole-2-thiones 8a~8d were prepared via condensing 4,5-bis-1,3-dithiole-2-thione (7) with 1,ω-dimercapto polyglycol derivatives in high dilution. The obvious template effect was found during the synthesis of 8c-8d.

在高度稀释条件下，经4，5-二溴甲基-1，3-二硫杂环戊烯-2-硫酮(7)和多缩乙二醇的1，ω-二巰基衍生物的缩合反应，方便地合成了4，5-位带二硫杂冠醚残基的2-硫代-1，3-二硫杂环戊烯的衍生物8a~8d，中间体硫杂冠醚8c~8d的合成中有明显的&模板效应&。

In this research,a novel anticoagulative biomaterial which was prepared from modified graphite oxide and silicone rubber through solution intercalated reaction was synthesized.

利用溶液插层法合成了新型的硅橡胶/氧化石墨-十六烷基三甲基溴化铵-肝素抗凝血纳米复合材料。

A novel anticoagulative biomaterial which was prepared from modified graphite oxide and silicone rubber through solution intercalated reaction was synthesized, The excellent properties of the new type nanocomposites, such as good mechanical strength and b

摘要利用溶液插层法合成了新型的硅橡胶／氧化石墨－十八烷基二甲基－2-羟乙基溴化铵－肝素纳米抗凝血复合膜材料，并通过机械性能测试、X射线衍射、血小板黏附试验和肝素扩散速率测定实验对复合膜材料的力学性能和血液相容性进行了表征。

A novel anticoagulative biomaterial which was prepared from modified graphite oxide and silicone rubber through solution intercalated reaction was synthesized, The excellent properties of the new type nanocomposites, such as good mechanical strength and blood compatibility, have been characterized by XRD, mechanical properties, adhesion of blood platelet test and the heparin release rate test.

摘要利用溶液插层法合成了新型的硅橡胶／氧化石墨－十八烷基二甲基－2-羟乙基溴化铵－肝素纳米抗凝血复合膜材料，并通过机械性能测试、X射线衍射、血小板黏附试验和肝素扩散速率测定实验对复合膜材料的力学性能和血液相容性进行了表征。

Iodimetry is a simple and accurate method that is used to measure active composition in chlorobromoisocy anuric acid smokes.

介绍了一种准确简便的测定氯溴异氰尿酸烟剂中的有效成份的分析方法——碘量法。

OBJECTIVE: To evaluate the apophlegmatic efficacy and safety of erdosteine capsule in the treatment of chronic bronchitis.

以安溴索片作对照药，对比研究厄多司坦胶囊对慢性支气管炎祛痰的临床疗效和安全性。

Using modified apple fruit RNA extraction method based on CTAB by adding a step of using KAc and absolute ethanol to precipitate pectin, high-quality total RNA was extracted from the leaf and the inflorescence of jackfruit (Artocarpus heterophyllus Lam.). The yields of total RNA were 74.7 μg/g FW for the leaf and 31.6 μg/g FW for the inflorescence.

以菠萝蜜的叶片和花序为材料，采用改良的十六烷基三甲基溴化胺法（在原来的提取方法基础上，使用乙酸钾和无水乙醇预先沉淀果胶），成功提取菠萝蜜叶和花序的总RNA，平均产率分别为74.7μg/gFW和31.6μg/gFW。

METHODS: Pulmonary function tests were performed in 20 children with asthmatoid bronchitis (2 months-2.5 years of age) before and 30, 60, and 120 minutes after salbutamo and ipratropium bromide inhalation. The indexes of pulmonary function measured included tidal breathing flow volume loop, percent of tidal volume to peak tidal expiratory flow, terminal flows per peak expiratory flow (25/PF), peak tidal expiratory flow, rate of mid-expiratory to mid-inspiratory flow, respiratory rate and tidal volume per kilogram. RESULTS: Before drug inhalation, the descending branch of the TBFV loop was depressed.

20例2个月至2岁6个月的喘息性支气管炎患儿，在吸入药物沙丁胺醇+溴化异丙托品前、吸入后30，60，120min各行一次潮气流速容量环检查，并进行肺功能各项指标比较，包括潮气呼吸流速容量环的形态，反映小气道功能的敏感指标到达潮气呼气峰流速时的呼气量/潮气量，呼出75%潮气量时的呼气流速/潮气呼气峰流速(25/PF)，潮气呼气峰流速，反映大气道功能的指标潮气呼气中期流速/潮气吸气中期流速，潮气呼吸状态下的通气功能，包括呼吸频率，每公斤体重潮气量。

Potassium, natrium determines it is good that use ion chooses electrode indirect method it is better also with indirect method to determine at calcium of direct way;, it is next occasionally phosphor of; of law of azotic arsenic Ⅲ determines use phosphor molybdic acid is ultraviolet law outcome is better it is better with result of law of personal candy kinase that; blood sugar determines; urea determines use Niao enzymatic ultraviolet anhydride of better; flesh uses rate law result enzymatic law outcome is better; albumin determines, it is vanadium acid next alkalescent phosphoric acid of oxidation law; is enzymatic determine outcome of fluid of use AMP amortize is better; amylase determines law of thing of enzymatic standard background and iodic colorimetric law coefficient of variation all bigger, former a bit small, latter of percent of pass is tallish, each lab can try to choose according to his condition.

结论钾、钠测定使用离子选择电极间接法好于直接法；钙测定用间接法也较好，其次是偶氮砷Ⅲ法；磷测定使用磷钼酸紫外法结果较好；血糖测定用己糖激酶法结果较好；尿素测定用脲酶紫外速率法结果较好；肌酐用酶法结果较好；白蛋白测定用溴甲酚绿法较好；胆红素测定用酶法结果好，其次是钒酸氧化法；碱性磷酸酶测定使用AMP缓冲液结果较好；淀粉酶测定酶法底物法和碘比色法变异系数均较大，前者稍小，合格率后者稍高，各实验室可根据自己的条件加以选用。

The bay area has no substituent and has electron-withdrawing groups,such as bromine atom,cyano-group and 4-formyl phenoxy group compounds have strong absorption in 525 nm,when excitated them,they have strong yellow and salmon pink luminescence bettwen 538 and 566 nm.When introduce electron-donating substituents,such as phenoxy group,morpholinyl,piperidinyl and n-butylamino group,the absorption bathochromic shift while the electron-donating ability is improved,bettwen 536 and 692 nm have strong absorption,reach to the near-infrared region. When excitated them,only the phenoxy group compound has strong salmon pink luminescence in 572 nm,the others have no fluorescence.

其中，港湾位无取代的以及含吸电基团(—Br、—CN、对甲酰基苯氧基)化合物在525 nm左右处均有很强的吸收ε＞10~4M~(-1cm~(-1)，当光激发时，港湾位无取代、溴代和氰基取代物发出538～547 nm的强烈黄色荧光，对甲酰基苯氧基取代物则发出566 nm的强烈橙红色荧光；含供电基团(苯氧基、吗啉基、哌啶基、正丁氨基)化合物随着供电子能力的增强，吸收发生红移，在536～692 nm处均有很强的吸收ε＞10~4M~(-1cm~(-1)，达到了近红外区，当光激发时，只有苯氧基取代物发出572 nm的强烈橙红色荧光，而含氮供电基取代物均发生了荧光淬灭。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。