胆甾醇添加剂可以显著改善N15号机械油的抗胶合能力。
The cholesteric crystal liquid additives can quietly improve the scuffing resistance of oil N15.
结果表明：胆甾醇酯的EI质谱裂解途径主要由甾环决定，各化合物谱图之间几乎无差别；
The result shows that EI fragmentation process of cholesterol esters is determined mostly by the steroid nucleus, and there is almost no difference among the mass spectra of various compounds.
研究了以粗羊毛脂为原料提取胆甾醇的工艺过程，重点研究了从羊毛脂醇中提取胆甾醇的工艺过程。
In the paper, the process of extraction of cholesterol from crude lanolin was studied, and the one from lanolin alcohol which is one of saponification production of lanolin were focused on.
羊毛脂原料价格便宜、易于得到，其中胆甾醇的附加值极高，因此，该工艺技术具有很高的工业化价值。
Since lanolin is a cheap and easily gained material, and the extracted cholesterol is of high added value, this study has great value for industrialization.
胆甾醇、麦角甾醇和豆甾醇及其衍生物是真菌中的主要甾体化合物，具有重要的生理功能和生物学活性。
Cholesterol, ergosterol and stigmasterol and their derivatives are the major steroids in fungi with important physiological functions in fungi as well as biological activities on other organisms.
本公司所生产的胆固醇检测试剂盒仅使用单一工作试剂，将胆甾醇酯水解、氧化及显色反应结合为一个步骤。
Our Cholesterol Assay uses a single Working Reagent that combines cholesterol ester hydrolysis, oxidation and color reaction in one step.
对胆甾醇配合及其提纯过程，将配合试剂从原来的钙盐C改为钙盐d，大大提高了配合的选择性和胆甾醇收率。
For the purification process for complexing of cholesterol, change of complexing reagent from Ca-C to Ca-D improved complexing selectivity and cholesterol yield.
研究了胆甾醇酯类和胆甾醇卤代物的电子轰击电离（EI）、场解吸电离（FD）、化学电离（CI）的质谱。
Mass spectra (MS) of cholesterol esters and halides were obtained by means of Electron Impact (EI), Field Desorption (FD) and Chemical Ionization (CI).
研究人员发现在啮齿类动物中有一种被称为27-羟基胆甾醇或27HC的小分子，它可与心脏血管内的雌激素受体结合。
The researchers found that in rodents, a molecule called 27-hydroxycholesterol, or 27HC, binds to the same receptors in the blood vessels of the heart to which estrogen binds.
以胆甾醇为指标性成分进行质量控制，采用反相高效液相色谱法对其进行了含量测定，五批蜣螂药材中胆甾醇的平均含量为0.3381%。
Cholesterin as an index component to control the quality was detected by RP-HPLC, the average content of the cholesterin in five kinds Dung Beetle was 0.3381%.
以胆甾醇为指标性成分进行质量控制，采用反相高效液相色谱法对其进行了含量测定，五批蜣螂药材中胆甾醇的平均含量为0.3381%。
Cholesterin as an index component to control the quality was detected by RP-HPLC, the average content of the cholesterin in five kinds Dung Beetle was 0.3381%.
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