查询词典 acid

The duodenal juice mainly consists of the bile acid, which is a sort of lipophilic steroid and may result in direct injuries of mucosal epithelial cells and their tight junctions. Some researches have showed that the bile acid directly damaged the chemical environment of mucosa surface and played a synergistical role in gastric mucosal lesions along with gastric acid and H.

十二指肠反流液中主要成分为胆汁酸，胆汁酸是十二指肠反流液中造成黏膜损伤的主要成分，为一种亲脂性类固醇，直接破坏黏膜上皮细胞以及细胞间的紧密连接，同时还对腔内及黏膜表面的化学环境造成直接的影响，增强胃酸、H。

Six crystalline substances were isolated from the stem and root of Syzygium buxifoli um and identified as friedelin,βsitosterol,ursolic acid,pomolic acid,oleanolic acid and βdaucosterol..

摘要从赤楠的茎和根部的乙醇提出物中，分离和鉴定了6个化学成分，分别为木栓酮，β谷甾醇，乌苏酸，19α羟基乌苏酸，齐墩果酸和胡萝卜甙。

We also found some distinctive metabolism regulation of sulphur amino acid,aminoglutaminic acid and protein in the gene transcription changes following by the addition of taurocholic acid to the minimal medium.

并掌握了在添加牛磺胆酸刺激的情况下，副溶血弧菌在蛋白质、含硫氨基酸和谷氨酸等代谢方面的规律。

The solubility of terephthalic acid in aqueous acetic acid was experimentally determined at 423.15~503.15 K and at the weight percent of the acetic acid of 60%, 70%,80%, 90% and 100% by using this method.

用该法测定了423.15~503.15K下对苯二甲酸在醋酸质量分数为60%、70%、80%、90%和100%的醋酸水溶液中的溶解度。

The invention relates to condensation products comprised of cyclic carboxylic acid anhydrides of dicarboxylic acids, tricarboxylic acid anhydrides or tetracarboxylic acid anhydrides and difunctional polyamines, especially polyoxyalkylene amines.

本发明涉及由二元羧酸的环状羧酸酐、三羧酸酐或四羧酸酐和二官能化多胺，特别是聚氧化烯胺制备的缩合产物。

Preparation of trifluoroacetaldehyde and trifluoroacetic acid by trifluoroethanol catalytic oxidation;2. Polyester nanofiber can be prepared by electrospinning process from PET chips separately dissolving in three kinds of solvents,namely,the mixture solvent of phenol and tetrachloroethane, trifluoroacetic acid and the mixture solvent of trifluoroace- tic acid and dichlormethane.

利用静电纺丝法制备聚酯纳米纤维，选择苯酚和四氯乙烷，三氟乙酸，三氟乙酸和二氯甲烷3种溶剂分别溶解PET切片进行静电纺丝，通过扫描电子显微镜对纤维表面形态进行观察，结果表明：三氟乙酸和二氯甲烷混合溶剂溶解PET制备的电纺纤维较好。

Ingredients: lavender essence,whitening factor,lauric acid, tetradecanoic acid, gydroxysulfobetaine, distearic acid glycol ester.

成分：薰衣草精华，美白因子，月桂酸，肉豆蔻酸，羟磺基甜菜碱，乙二醇双硬脂肪酯。

Ingredients:Rose extract,whitening factor,lauric acid, tetradecanoic acid, gydroxysulfobetaine, distearic acid glycol ester.

成分：玫瑰提取液，美白因子，月桂酸，肉豆蔻酸，羟磺基甜菜碱，乙二醇双硬脂肪酯。

Ingredients: lavender essence,whitening factor,slauric acid, tetradecanoic acid, gydroxysulfobetaine, distearic acid glycol ester.

成分：薰衣草精华，美白因子，月桂酸，肉豆蔻酸，羟磺基甜菜碱，乙二醇双硬脂肪酯。

Ingredients: honey extract , lauric acid, tetradecanoic acid, gydroxysulfobetaine, distearic acid glycol ester.

成分：柠檬提取液，蜂蜜，月桂酸，肉豆蔻酸，羟磺基甜菜碱，乙二醇双硬脂肪酯。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。