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- the alkyl peroxyl radicals 过氧烷基自由基
- The total oxyradical scavenging capacity of the semen toward hydroxyl and peroxyl radicals also increased and was positively correlated with the improvement of kinetic features. 精子的去除氧基功能,即去除羟基氢氧基和过氧化氢基的能力也随之增加,且与精子活动力的增加正相关。
- The activities of antioxidants toward free radicals such ashydroxyl radical, superoxide, and peroxyl radical have been measuredby various methods.Two points may be noteworthy. 抗氧化剂对于自由基的活性可以用各式各样的方式评价,像羟基自由基,超氧化物,过氧自由基。
- This method can be used for quantitative analysis of the alkyl amido phosphate ester. 该法可用于烷基酰胺磷酸酯的定量分析.
- The alkyl lines of linseed oil increased the internal toughness and improved the frailty of phenolic resin. 亚麻油的烷基链起到内增韧的作用,改善了树脂的脆性。
- The alkyl polyglucoside was synthesized by the direct reaction of glucose and laurel alcohol. 采用直接苷化法合成了十二烷基葡糖苷。
- The alkyl indican can be synthesized by starch with low cost and free pollution which can agree with the de mands of modern production. 以淀粉为主要原料合成烷基糖苷,不仅成本低,而且无污染,符合现代环境保护的要求。
- Moreover, the results of IR spectrum and apolar component of surface free energy showed that the alkyl chains of OTS tilted on the surface of PTW after the modification. IR分析和色散分量测定表明,改性后OTS的烷基链倾斜在PTW表面。
- Thirteen new compounds of the alkyl styryl indoline spirobenzopyrans were synthesized from the condensation of 2-methylene indoline with the designed salicylaldehyde. 利用2-亚甲基吲哚啉和取代水杨醛缩合得到十三种新的烷基苯乙烯基吲哚啉螺苯并吡喃。
- Conclusion: The title compounds with cyclopropyl and alky substituents have antifungal activities,and the antifungal activity decreases as the alkyl side chains getting longer. 结论:引入环丙基和烷基侧链的目标化合物都具有抗真菌活性,随着烷基侧链增长,目标化合物的活性降低。
- The alkyl polyglucosides were synthesized from p-toluenesulfonic acid,glucose and dodecyl alcohol by transglycosidation.The influence factors were discussed. 以对甲苯磺酸为催化剂,以葡萄糖和脂肪醇作原料,采用转糖苷化法合成了烷基葡糖苷,考察了工艺条件对合成烷基糖苷的影响。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- The alkyl length of M component is in connection with its ability for inhibiting agglomeration of the paraffin crystals and for dispersion of the crystals. 研究结果还表明,协同作用取决于M组分的分子结构,其中烃基链的长短具有重要影响。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- Foreign nationals were asked to leave the country. 外国侨民被要求离开该国。
- The effects of the concentrations, mixed ratio for two surfactants and the chain length of the alkyl sulfonate on the formed vesicles were investigated, respectively. 对混合表面活性剂的总浓度、两表面活性剂的混合比以及混合体系中烷基磺酸盐的碳链长度对囊泡形成的影响进行了研究。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- A country must have the will to repel any invader. 一个国家得有决心击退任何入侵者。
- The electron withdrawing group (F) being introduced into the alkyl groups of the n-hexyl ZDDP is able to strengthen chemical adsorption between ZDDP and Fe atoms. 在伯烷基上吸电子基团能增强硫原子与铁原子之间的化学吸附作用力。