查询词典 lactic

The invention uses the method of the fusion and direct polymerization to prepare the carboxyl-terminated lactic acid prepolymer and then copolymerize with the aliphatic polycarbonate; then the reaction is done in the twin-screw extruder to screw out the extension chain and the good polylactic acid copolymer is made.

本发明采用熔融直接缩聚的方法制备出羧基封端的乳酸预聚物，接着再与脂肪族聚碳酸酯二元醇进行共聚，然后再在双螺杆挤出机中进行反应挤出扩链，制备性能良好的聚乳酸共聚物。

Element of acerbity kinase of flesh of the protein in fluid of lactic acid of the heartbeat that the author treated a swimmer in detail, blood, make water, serum, haemoglobin, hematuria and hematic Gao ketone / the test time of the 7 monitoring index such as coriaceous mellow ratio, method, note and its are opposite control its.

作者具体地论述了游泳运动员的心率、血乳酸、尿液中蛋白质、血清肌酸激酶、血红蛋白、血尿素以及血睾酮/皮质醇比值等7项监控指标的测试时间、方法、注重事项及其对控制其运动负荷的意义。

The lactic acid could divided to three isomers: L, Dand DL.

乳酸按其旋光性可分为D-乳酸、L-乳酸和DL-乳酸3种。

Malolactic fermentation was a kind of deacidification method induced by lactic acid bacteria in wine.

苹果酸-乳酸发酵是葡萄酒中乳酸菌进行的细菌降酸过程。

ABSTRACT Malolactic fermentation was a kind of deacidification method induced by lactic acid bacteria in wine.

摘 要 苹果酸-乳酸发酵是葡萄酒中乳酸菌进行的细菌降酸过程。

Ingredients: water,decyl glucoside,glycerin,sodium cocoamphodiacetate,sodium pca,polysorbate-20,cocamidopropyl betaine,carya illinoensis powder,panthenol,carbomer,aloe barbadensis leaf juice,lavandula angustifolia oil,perfume,tetrasodium edta,lactic acid.

主要成份：去离子水，葵基葡聚糖，甘油，椰油两性二醋酸二钠，吡咯烷酮羧酸钠，聚山梨醇酯-20 ，椰油酰胺丙基甜菜碱，核桃粉，泛醇，卡波姆，芦荟叶萃取物，薰衣草精油，香精，乙二胺四乙酸四钠，乳酸。

The results show that complexing agent greatly effects on film's density. For the double complexing agents solution system based on citric acid, the solution with lactic acid and citric acid produced most compact film with lowest porosity; and for the double complexing agents solution system based on butane diacid, the solution with butane diacid and malic acid made most compact film with lowest porosity.

研究结果表明：络合剂对镀层的致密度影响显著，对于以柠檬酸为基的双络合剂体系镀液来讲，乳酸-柠檬酸双络合剂体系镀液获得的镀层致密度最好，具有最低的气孔率；而对于以丁二酸为基的双络合剂体系镀液来讲，丁二酸-苹果酸双络合剂体系镀液获得的镀层致密度最好，具有最低的气孔率。

The Effects of SnCl2/naphthalene Disulphonic Acid on the Microstructure of Polymers Prepared from D, L-lactic Acid

CEPS 思博网--文章书目；-1页数：5 需求点数：20 电子全文：请登入。篇名氯化亚锡／萘二磺酸对D， L-乳酸聚合物微结构的影响

It showed that the ammonium ferric sulfate dodecahydrate was an excellent catalyst,the yield of the n-butyl lactate could reach over 95.0% under molar ratio of n-butyl alcohol and lactic acid 2.25∶1,the reaction temperature of 110～125℃,reaction time of 1.5 h and amount of the ammonium ferric sulfate dodecahydrate catalyst of 2.5%.

实验表明：NH4Fe(SO4)212H2O是合成乳酸正丁酯的良好催化剂。最佳反应条件为：醇酸物质的量比2.25∶1，催化剂的用量为反应物料总量的2.5％，酯化反应时间为1.5 h，反应温度110～125℃，酯化率可达95.0％。

The n-butyl lactate was synthesied by the esterification of lactic acid and n-butyl alcohol in presence of ammonium ferric sulfate dodecahydrate NH4Fe(SO4)212H2O,and the factor influencing on the yield of reaction were discussed.

摘 要：在十二水合硫酸铁铵催化下，由乳酸和正丁醇发生酯化反应合成了乳酸正丁酯。实验考察了该催化剂催化酯化合成乳酸正丁酯的醇酸比、催化剂用量、反应时间、反应温度诸因素对酯化率的影响。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。