| 释义 |
pro·pi·on·ic 英prɒpa'ɪɒnɪk美prɒpa'ɪɒnɪk COCA¹⁷²²³⁸BNC¹²⁶⁴¹⁶⁺⁴iWeb⁵²⁸⁴³
基本例句
丙酸的¹⁰⁰
A method of preparing trimethylolethane from formaldehyde and propionic aldehyde in water was introduced in the presence of the base through cross Cannizzero reaction.
介绍了以甲醛、丙醛为原料，水为反应介质，碱催化进行交叉康尼扎罗反应制备三羟甲基乙烷的方法。 dictall
Among these products the production of propanal, propanol and propionic acid remains almost a blank in China.
介绍了世界丙醛系列产品的生产与应用。 chemyq
An Aqueous polyurethane emulsion was prepared from polyether glycol, diisocyantotolucl TDI and dimethylol propionic acid DMPA etc.
由聚醚，甲苯二异氰酸酯 TDI ，二羟甲基丙酸 DMPA等为原料制备水性聚氨酯乳液胶粘剂。 cnki
Separation and purification of propionic acidPA from fermentation broth using ion- exchange method hold great application promise for PA fermentation and vitamin B12 fermentation.
采用离子交换法从发酵液中提取丙酸，对于丙酸发酵与维生素 B12发酵均具有较大的潜在应用价值。 cnki
The esterification reaction of propionic acid with n- pentanol was studied by using novel aluminophosphate and silicoaluminophosphate molecular sieves as catalysts.
用新型磷酸铝分子筛和硅磷酸铝分子筛作催化剂，对丙酸和正戊醇液—固相酯化反应进行了研究。 dictall
The high yield of propionic acid in mixed acid fermentation was the main reason for the low hydrogen production capacity.
混合酸发酵的发酵产物中丙酸含量较高是产氢能力偏低的主要原因。 cnki
The pretreatment process of propionic acid fermented broth by hollow- fiber membrane was investigated.
利用中空纤维膜对丙酸发酵液的预处理进行了初步研究。 dictall
The suitable stem and leaf treatment was sethoxydim and aryloxy- phenoxy propionic acid herbicides.
适宜茎叶处理剂为拿捕净及芳氧苯氧基丙酸类除草剂； cnki
Waterborne polyurethane resin is prepared by alcoholyzing oil with polyol at first, and then reacting with polyether polyester, dimethylol propionic acid, diisocyanate.
油与多元醇经醇解反应，进而与聚醚或聚酯、二羟甲基丙酸、二异氰酸酯反应制得水溶性氨酯油。 chemyq
All these drawbacks, however, could be effectively overcome in a semi batch reaction system into which propionic anhydride was continuously fed.
然而，在连续流加丙酸酐的半批式反应系统中，所有这些缺点均可有效地克服。 cnki
Aqueous gold colloid capped by3 mercapto propionic acid has been prepared.
制备了3-巯基丙酸包裹的金钠米粒子水溶胶。 cnki
By using sodium hydrogen sulfate as the catalyst, benzyl alcohol and propionic acid reacted to form benzyl propionate.
以苯甲醇、丙酸为原料，硫酸氢钠为催化剂，合成了丙酸苄酯。 dictall
Conclusion The yields of3-4- iodobenzoyl propionic acid was obviously improved under the condition determined in this test.
结论在本次试验确定的合成条件下3-4-碘苯甲酰基丙酸的收率明显提高。 cnki
Methicillin-resistant coagulase-negative staphylococci MRCNS was the highest in the isolated germs, and it was followed by staphylococci epidermidis and propionic acne.
细菌培养的分离率由高到低依次为耐甲氧西林凝固酶阴性葡萄球菌 MRCNS、表皮葡萄球菌、痤疮丙酸杆菌； cnki
Moreover, the average rate can rise and the hardness will reach the maximum along with the increasing concentration of propionic acid.
在其它条件不变的情况下，随着丙酸浓度的增加，平均镀速有所上升，而硬度先上升，达到一个最大值后开始下降。 chemyq
Most of the specimens containing acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, lactic acid and succinic acid which were accorded with the result of bacteriologic study.
在大多数标本中含有乙酸、丙酸、丁酸、异丁酸、戍酸、乳酸和琥珀酸，与细菌培养的结果基本相符。 cnki
Objective To determine the best synthesis condition of3-4- iodobenzyl propionic acid.
目的考察3-4-碘苯甲酰基丙酸的最佳合成条件。 cnki
Starting from toluene diisocyanate TDI, polypropylene glycol PPG and dimethylol propionic acid DMPA, the anionic water-borne polyurethane emulsion was synthesized.
以甲苯二异氰酸酯 TDI、聚丙二醇 PPG、二羟甲基丙酸 DMPA为原料，制备了阴离子型水性聚氨酯乳液。 dictall
The crosslinking polyurethane emulsions were prepared from polyether, toluene diisocyanate, dimethanol propionic acid, trimethanol propane TMP, etc.
由聚醚、甲苯二异氰酸酯、 二羟甲基丙酸及三羟甲基丙烷 TMP等为原料制备交联型聚氨酯乳液。 chemyq
The resulting imidazoline as an inhibitor was compounded with propionic alcohol and butynediol.
以丙炔醇、丁炔二醇为复配剂对油酸基咪唑啉缓蚀剂进行了复配研究。 dictall
The polyurethane emulsion was prepared from diisocyanate, polyether polyol and dimethylol propionic acid DMPA.
以甲苯二异氰酸酯、聚醚二元醇、二羟甲基丙酸 DMPA为原料，合成了聚氨酯乳液。 cnki
This paper introduces about production methods of propionic acid, market prospect and application in food, feed process industries and medical industries.
介绍了丙酸的生产方法，市场前景以及在食品和饲料加工工业，医工业等方面的应用。 chemyq
This suggests that Daidaein can increase the synthesis capacity of ruminal microbial crude protein and alter the rumen fermentation pattern, tend to propionic-type fermentation.
提示，大豆黄酮能提高瘤胃微生物蛋白的合成能力，改善瘤胃的发酵类型，使瘤胃发酵趋于丙酸型。 cnki
Under the selected conditions of the chromatographic operation, there was the better separation efficiency between2-4- hydroxyphenoxy propionic acid and impuritiessuch as hydroquinone, etc.
在选定的色谱操作条件下，2-4-羟基苯氧基丙酸与杂质对苯二酚等之间具有良好的分高效果。 cnki
Water-borne polyurethane was prepared using isocyanate TDI, polyether N210, 1,4- Butanedio BDO, dimethylol propionic acid DMPA and epoxy resin as main raw materials.
用甲苯二异氰酸酯TDI、聚醚多元醇 N210、1，4-丁二醇 BDO、二羟甲基丙酸 DMPA和环氧树脂等为主要原料制备了水性聚氨酯。 dictall
Propionic acid and its salts are important feed preservatives.
丙酸及其盐是重要的饲料防腐剂。 cnki
Propionic acid is an important chemical raw material, but it is also a material of serious scarcity in China.
丙酸是重要的食品、医学、 饲料工业原料，也是目前我国紧缺的防腐剂原材料之一。 chemyq
Propionic acid is product heavily short of in our country.
丙酸是目前国内十分紧缺的一种产品。 chemyq |