本产品由羟基脂肪酸锂皂稠化高级基础油并加入高效添加剂制成，是城市地铁轮轨的专用润滑脂。
The product is made from hydroxy fatty acids lithium soap thickening high-grade basic oil and high-performance additive.
单糖本质上是脂族的多羟基醛和酮，即HOCH2- (CHOH) 2 -CHO和HOCH 2 - (CHOH) n - 1 - C： O - CH 2 OH，分别称为醛糖和酮糖。
The simple sugars monosaccharides0 are basically aliphatic polyhydroxy aldehydes and ketones: HOCH2 - CHOH n-CHO and HOCH2 - CHOOH n-1-C-O-Ch2OH, called "aldoses" and "ketoses," respectively.
第二步：2-氨基和一个脂链羟基被保护的更昔洛韦要脱除氨基保护。
Step II: Ganciclovir with a protected 2-amino group and one aliphatic hydroxy group protected is subjected to de-protection of the amino group.
胆固醇也是大多数细胞膜脂质的组成成分，它有一个羟基基团，即一个微小的极性头部连接到一个刚性的疏水性的尾端。
Cholesterol is another lipid component of most cell membranes. It has a hydroxyl group, a tiny polar head group so to speak attached to a rigid hydrophobic tail.
目的：制备10 -羟基喜树碱的半固体脂质纳米粒(HCPT -SSLN)并考察其稳定性。
Objective: to prepare 10-hydroxycamptothecin-semisolid lipid nanoparticles (HCPT-SSLN) and investigate its stability.
以硫酸化蓖麻油和季铵盐（ETA）为原料，在一定的反应条件下，硫酸化蓖麻油分子中的羟基与ETA发生取代反应，合成季铵型两性表面活性剂，与其它物质复配成两性皮革加脂剂。
The amphoteric surfactant was synthesized by sulfuric castor oil and ETA. The reaction condition of surfactant were deeply studied. The amphoteric fat liquor was recombinated with other surfactants.
不含染料，香水，羊毛脂，对羟基苯甲酸酯和甲醛。
用于制备3，4，5-三羟基苯甲酸甲脂的混合催化剂。
Mixed catalyst for preparing methyl ester of 3,4,5-trihydroxybenzoic acid methyl ester.
用于制备3，4，5-三羟基苯甲酸甲脂的混合催化剂。
Mixed catalyst for preparing methyl ester of 3,4,5-trihydroxybenzoic acid methyl ester.
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