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或丙酸
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  “或丙酸”译为未确定词的双语例句
     The low molecular weight analogs of styrene/maleic anhydride(PSMA)and styrene/acry-lonitrile (PSAN) copolymer were mixed.
     用低分子量模型化合物乙苯与乙酸酐或丙酸酐预混合模拟苯乙烯-顺丁烯二酸酐共聚物(PSMA),乙苯与丙腈预混合模拟苯乙烯-丙烯腈共聚物。
短句来源
     8 mL fresh thermophilic inoculum were placed in a glass vial of 108 mL with 0.5 mL substrate (acetate or propionate) and 31.5 mL nutrient solution. The vials were incubated at 9 different treatment temperatures ranging from 25 to 65 ℃.
     玻璃反应器(108mL)中分别加入8mL嗜热微生物菌群和0.5mL的底物(乙酸或丙酸)以及31.5mL的营养液,然后放置在9个不同处理温度(25~65℃)的生化培养箱中进行培养.
短句来源
     It' s proved that the yield of coal acids (CA) can be improved by adding acetic acid or propanoic acid .
     结果证明,加入适量的乙酸或丙酸促进剂可提高煤酸(CA)产率。
短句来源
     The results are as follows:(1) With acetates as starting material, methoxyethanol or proponic acid as solution, stable fluorine-free YBa2Cu3O7-x sols can be prepared by using suitable complexing agents.
     通过实验,得出如下结论:(1) 利用乙二醇甲醚或丙酸为溶剂,醋酸盐为原料,通过添加合适的络合剂,制备了稳定的无氟YBCO溶胶;
短句来源
     In this thesis, more than 40 organotin carboxylates were synthesized by the reactions of triphenyltin hydroxide, cyclohexyltin hydroxide, dibutyltin oxide, 2-methyl-2-phenylpropyltin oxide with various aryloxyacetic acids , 2-(aryloxyacetyl hadrazone) acetic acid(or pyruvic acid) and 2-(2-hydroxy benzoyl hydrazono) acetic.
     本论文以三苯基氢氧化锡、三环己基氢氧化锡以及二丁基氧化锡、三(2-甲基-2-苯基丙基)氧化锡等有机锡为底物,以各种芳氧乙酸、2-(取代芳氧乙酰腙)乙酸(或丙酸)为配体,合成了40多个未见文献报道的有机锡羧酸酯配合物。
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     Then the adsorbed bond C-H of alkyl hydrocarbons turn into C·and H·,and the adsorbed bond C=C turn into·C-C·,·C-C·or C·and H·respectively react with the molecule or ion of the surface.
     C-C. C.
短句来源
     and the D.
     D .
短句来源
     The mobilephase,water,or glycerin aqueous solution or propanoic acid aqueous solu-tion.
     水、丙三醇的水溶液、丙酸水溶液为流动相;
短句来源
     Perturbation was created by a pulse addition of either propionate, butyrate or formate.
     扰乱由脉冲添加丙酸、丁酸甲酸来建立。
短句来源
     Propionic acid and application thereof
     丙酸及其应用
短句来源
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  orpropionate
The sex pheromones ofNeodiprion pinetum (Norton) andDiprion similis (Hartig) consist of two isomers, 2S,3S,7S and 2S,3R,7R, in either the acetate orpropionate forms of 3,7-dimethylpentadecan-2-ol, respectively.
      


Early pregnancy (≤49d), 105 cases, were terminated by 15-methyl prostaglandin F_(2α) (PGF_(2α)) combined with danazol or testosterone propionate. Among them, 66 cases falling in the former group attained a complete abortion rate of 93.94%, and 39 eases in the latter group, had the rate of 82.05%, showing a difference statistically significant (P<0.05). Danazol was administered by patients themselves through vaginal mute. No side effects, particularly those to the heart, liver and kidneys, were noticed. Its therapeutic...

Early pregnancy (≤49d), 105 cases, were terminated by 15-methyl prostaglandin F_(2α) (PGF_(2α)) combined with danazol or testosterone propionate. Among them, 66 cases falling in the former group attained a complete abortion rate of 93.94%, and 39 eases in the latter group, had the rate of 82.05%, showing a difference statistically significant (P<0.05). Danazol was administered by patients themselves through vaginal mute. No side effects, particularly those to the heart, liver and kidneys, were noticed. Its therapeutic effect was comparable to that of Ru486 (mifepristone) used in combination with prostaglandin for the same purpose. Besides, danazol was much cheaper than Ru486. Thus, this approach is worthy for further clinical therapeutic trial.

15-甲基前列腺素F_(2α)合并丹那唑或丙酸睾丸酮抗早孕(≤49天)共105例,其中前者66例,完全流产率93.94%而后者39例作为对照,完全流产率为82.05%,两者有显著差异(P<0.05)。丹那唑是阴道给药,无副反应,对肝、肾与心脏无影响。因此,用此药合并前列腺素抗早孕值得进一步探索。

The gelation process of polysulfone ultrafiltration membrane has been studied with the high performance liquid chromatography method on thestationary phase,a polysulfone-coated glass microglobes and.The mobilephase,water,or glycerin aqueous solution or propanoic acid aqueous solu-tion.In good-solvents of polysulfone,with or without additives,the sam-ple is measured the retention time and the distribution constant K_S is calc-ulated.In the gelation process,the diffusion ratio could be indicated by K_Sbetween...

The gelation process of polysulfone ultrafiltration membrane has been studied with the high performance liquid chromatography method on thestationary phase,a polysulfone-coated glass microglobes and.The mobilephase,water,or glycerin aqueous solution or propanoic acid aqueous solu-tion.In good-solvents of polysulfone,with or without additives,the sam-ple is measured the retention time and the distribution constant K_S is calc-ulated.In the gelation process,the diffusion ratio could be indicated by K_Sbetween good-solvent and gelation medium.The lg K_S and normal carbonchain which contains alcohol,ester and organic acid are in linear relation.K_S is also in close relationship with cloudy point,For reasons given above,K-S could predict the membrane performance.

用高效液相色谱,以涂敷聚砜的玻璃微球为固定相;水、或丙三醇的水溶液、或丙酸水溶液为流动相;聚砜的七种良溶剂,15种添加剂为样品从测定的保留时间计算了平衡分配常数K_S。K_2能表征聚矾铸膜液在凝胶过程中,良溶剂与凝胶介质双向扩散速度之比;K_S的对数与正构醇、酸和酯的碳原子数n 成直线关系;K_S还和铸膜液的雾点有很好的相关性。并能以K_S 推测膜性能。

The history of and latest progress in the research on vapor-phase aldol condensation catalysts of formaldehyde with propionic acid to form methacrylic acid or methyl mathacrylate are reviewed,including the influence of different carriers,metal cations and react conditions,et al,on catalytic activity and selectivity.The regeneration process of catalysts and that vapoor phase condensation is the main trend in this field are also introduced.

介绍了以丙酸或丙酸酯为原料,用气相羟醛缩合法制甲基丙烯酸(MA)及甲基丙烯酸甲酯(MMA)的研究进展,催化剂载体、负载离子形式、反应条件等对催化剂性能的影响,以及催化剂再生工艺的研究成果及动态,指出气相羟醛缩合法合成MA及MMA是今后的发展方向。

 
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