三羟的

A series of 2-Hydroxypropyltrimethyl Ammonium Chloride Chitosan with different degree of quaternarization and molecular weight were prepared.

采用不同反应和降解条件制备了一系列不同取代度和不同分子量的羟丙基三甲基氯化铵壳聚糖。

Plaque and gingivitis were scored after 3 and 6 months' use of the assigned dentifrice.

因此，每天两次使用三氯羟苯醚－共聚体牙膏能显著减少牙菌斑的形成，降低龈炎指数和改善牙龈健康。

Methods 2-Methacryloyloxyethyl phosphorylcholine was prepared by the reaction of phosphorycholine dichloride with 2-hydroxyethyl methacrylate.

方法以三氯氧磷、氯化胆碱和甲基丙烯酸-2-羟乙基酯为原料，合成含PC基团的聚合单体-2-甲基丙烯酰氧乙基磷酰胆碱。

Results: Fresh nHA-PA66 paste and polymerized nHA-PA66 films showed no antimicrobial activity to Sm and little to Av and Lc. After mixed with the iodoform, the antimicrobial activity of nHA-PA66/I paste obviously increased, but no significant difference between nHA-PA66/I and CH. There was no antimicrobial activity of HA to the three test bacterial strains.

结果：抗菌实验结果表明，nHA-PA66固化膜片与nHA-PA66糊剂对Sm无抑菌作用，对Av和Lc有极轻微抑菌作用，膜片与糊剂之间无显著性差异；加入碘仿后的nHA-PA66糊剂抑菌能力显著增强，与氢氧化钙相比无显著性差异，常规羟磷灰石对三种实验菌均无抑菌作用。

OH and superoxide free radical(O.- 2).MethodsThe methods of DPPH.,Salicylic Acid and pyrograllol auto-oxidation were used to assay the scavenging the extract from the leaf of L. rethenicum Murr. on the three free radicals.

方法采用DPPH法、水杨酸法、邻苯三酚自氧化法分别测定黑果枸杞叶片甲醇提取物清除DPPH自由基、羟自由基和超氧自由基的能力。

Using tea polyphenol and Vc as the control, the effect of lotus seed polyphenol on scavenging OH and O2(superscript -) was studied with Fenton reaction and pyrogallol autoxidation methods.

以茶多酚和Vc为对照，采用Fenton反应法研究莲子多酚对羟自由基的清除作用；采用邻苯三酚自氧化法研究莲子多酚对超氧阴离子自由基O2

My house so your baby after birth, and three times a day with hydroxyl Bian triazole eye drops eye, half a month just fine.

我家孩子生后也这样的，每天三次用羟卞唑眼药水洗眼，半个月就好了。

By single factor experiment,experiment studied on the effect on the dosage of NaOH、CHPTMA、sodium chloroacetate 、temperature and time to reaction.

并通过单因素实验讨论了NaOH用量、氯乙酸钠用量、3-氯-2-羟丙基三甲基氯化铵用量、反应温度和反应时间等对合成反应的影响。

With toluene two isocyanogen diethylene glycol dinitrate, the polyester or the polyether dihydroxy alcohol, two methylol propionic acid, the triethylamine, the ethylene diamine and so on are raw materials, uses the prepolymer dispersion method, has prepared a series of anion river character polyurethane emulsion.

用甲苯二异氰酸酯、聚酯或聚醚二元醇、二羟甲基丙酸、三乙胺、乙二胺等为原料，采用预聚物分散法，制备了一系列的阴离子水性聚氨酯乳液。

Experiment results showed as follows: 1 Two kinds of reactive oxygen species exhibited remarkable damage to larvae on 3 types of different development stage.The treatment of reactive oxygen species could result in decrease of larva survival rate and inhibit metamorphosis rate of cyprid.

实验结果表明：1、二种类型的活性氧对东方小藤壶三种不同发育时期的幼虫均具有伤害作用，在其作用下，幼虫存活率的下降，变态过程受到抑制，且表现出一定的剂量效应；三种不同发育时期的幼虫对活性氧作用的敏感性存有明显的差异性，Ⅵ期无节幼虫对羟自由基的作用最为敏感。

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。