水中的氧来源于吸附态氧，氢来源于甲醇中的甲基氢和羟基氢且以甲基氢居多。
Experimental results show that oxygen in the water comes from the adsorbed oxygen and hydrogen from the methyl and the hydroxyl in methanol.
塔格糖是果糖的“差向异构体”，在分子水平上，除了第四个碳原子上的羟基和氢基团倒置外，D -塔格糖与D -果糖的结构是一样的。
On a molecular level, D-tagatose is structurally identical to D-fructose, except for an inversion of the hydroxyl and hydrogen groups at the fourth carbon atom.
羧酸中的羟基被氨基取代后，生成的化合物，也可看作是氨的氢被酰基取代的衍生物。
The hydroxyl amino acid has been replaced, the resulting compounds can also be regarded as ammonia hydrogen has been replaced by acyl derivatives.
用月桂酰氯对二氢杨梅素的羟基进行酯化，合成了二氢杨梅素月桂酸酯。
Hydroxy in dihydromyricetin (DMY) was esterified with lauroyl chloride and dihydromyricetin laurate (DMYL) was synthesized in this investigation.
介绍了近年来金刚石包裹体中流体研究结果，特别是分子氢和羟基的发现。
Recent studies of fluids in the diamonds, particularly the discovery of molecular hydrogen and hydroxy are presented in the paper.
以钼磷酸为催化剂合成了两种羟基乙酸酯，并经沸点和核磁共振氢谱确定了它们的组成和结构。
Molybdophosphoric acid used as the catalyst, two alkyl glycolates were prepared. The glycolates were characterized by the boiling points and proton NMR spectra.
其次，本文用正交实验设计和单因素寻优等有关实验方法对端羟基环氧环己烷-四氢呋喃共聚醚的合成工艺进行了研究。
Secondly, with the orthogonal design method and single-factor-experiment, the technics of synthesizing Hydroxyl-terminated copolymer of CHO -thf have been studied in this paper.
从四氢吡喃醚的合成及脱除方法介绍了二氢吡喃这种羟基保护试剂近十几年来在有机合成中的应用。
As an effective protection for hydroxy group in alcohols and phenols, the methods for the formation of tetrahydropyran ether and its cleavage employed in the last 15 years are reviewed.
目的：通过去氢骆驼蓬碱 （HM）微球与羟基喜树碱 （HCPT）注射液对大鼠正常肝细胞 （BRL ）的毒性作用的比较研究 ，为HM的临床应用提供佐证。
Objective: In order to offer evidence for the clinical application of HM(harmine), toxicity of HM and HCPT(hydroxycamptothecin) against the rat normal liver cell (BRL) was compared.
方法：采用氯化钙和磷酸氢二钠缓冲溶液交替矿化的方法，在丝素膜上仿生沉积羟基磷灰石。
Methods: Silk fibroin films were fabricated and biomimetic mineralization was carried out in the media of alternative CaCl_2 and Na_2HPO_4 solutions(ACPS).
合成了两个具有果香香气的香料：2-羟基-5-正戊基四氢呋喃及2-己氧基-5-正戊基四氢呋喃；证实了其结构。
Two compounds of fruity aroma 2-hydroxy-5-pentyl tetrahydrofuran and 2-hexaoxy -5-pentyl tetrahydrofuran were prepared, and their structures confirmed.
合成了两个具有果香香气的香料：2-羟基-5-正戊基四氢呋喃及2-己氧基-5-正戊基四氢呋喃；证实了其结构。
Two compounds of fruity aroma 2-hydroxy-5-pentyl tetrahydrofuran and 2-hexaoxy -5-pentyl tetrahydrofuran were prepared, and their structures confirmed.
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