二酸的

Using self-made H3PW6Mo6O40 as catalyst,butyraldehyde glycol acetal was prepared by butyraldehyde and glycol.

用自制的磷钨钼杂多酸作催化剂，以丁醛和乙二醇反应合成了丁醛乙二醇缩醛。

Objective: To study synergistic effect with Ascorbic acid on arsenic trioxide inducing human Hepatocarcinoma cell apoptosis, and provide theoretical basis for promoting human Hepatocarcinoma cell apoptosis induced by arsenic trioxide.

目的：探讨抗干血酸对三氧化二砷诱导人肝癌细胞凋亡的协同效应，为改善三氧化二砷临床治疗人肝癌细胞提供理论基础。

The method of liquid phase synthesis of dioxane from the cyclodehydration of diethylene glycol catalyzed by ASP-type solid acidic catalysts was studied.

研究了ASP型固体酸催化剂一缩乙二醇环化脱水合成1，4-二氧六环的液相反应。

Mesoporous zincum sulfide is synthesized by room-temperature method and hydrothermal technique, employing the surfactant cetyltrimethyl ammonium bromide, duodecimal alkyl sulfonic natrium and lauryl amine as templates. All kinds of technic parameters' influence to the synthesis has been systematically discussed, and the extracting of templates have been investigated.

本论文以十六烷基三甲基溴化铵、十二烷基磺酸钠及十二胺为模板，采用水热法和室温法合成了介孔硫化锌，系统探讨了各种工艺参数对合成材料结构特征的影响。

They were eucalyptol, bicyclo［2.2.1］heptan-2-one,1,7,7-trimethyl-,(1R)-, borneol, 1-methyl-2-(1-methyl ethenyl)-(1R-cis)-cyclobutaneethanol, limonene, 1-hydroxymethyl-7,7-dimethy lbicyclo［2.2.1］heptan-2-one,-spathulenol, 3,7,11,15-Tetramethyl-2-hexadecen-1-ol, isocitronellol,-9-Octadecenoic acid, heneicosane, respectively.

阿给中共有11个阿给炭没有检测出的成分，包括桉油精、D-樟脑、冰片、(1R-cis)- 1-甲基-2-(1-甲基乙烯基)环丁基乙醇、二戊烯、1-羟甲基-7，7-二甲基-双环［2.2.1］庚-2-酮、-匙叶桉油烯醇、3，7，11，15-四甲基-2-十六碳烯-1-醇、异香茅醇、-9-十八碳烯酸和廿一烷。

The main ingredient hematoporphyrin is 1, 3, 5, 8-tetramethyl-2,4-di-porphin-6,7

啉。其主要成分血卟啉的化学名为1，3，5，8，-四甲基-2，4-二-卟吩-6，7-二丙酸。

Under the catalyst, the polymerization retarder, the including water medicinal preparation existence condition, the methylacrylic acid and the polyethylene glycol single methyl ether (400) direct esterification synthesis methylacrylic acid polyethylene glycol single methyl ether (400) ester, and the influence factors of the catalyst, polymerization retarder, including water medicinal preparation has mellowly carried on the comparison.

摘要在催化剂、阻聚剂、带水剂存在的条件下，由甲基丙烯酸与聚乙二醇单甲醚(400)直接酯化合成甲基丙烯酸聚乙二醇单甲醚(400)酯，并对酸醇比、催化剂、阻聚剂、带水剂等影响因素进行了比较。

The results indicated that among sodium dodecyl benzene sulfonate, sodium oleate and glycol, the sodium oleate has good effect.

结果表明，在十二烷基苯磺酸钠、油酸钠和乙二醇3种不同的表面活性剂中，选用油酸钠效果最好。

Thereinto, the content of eucalyptus oil was the most with 27.20%, the next was Terpinen-4-OL (21.27%), N-methyl-laurotetanine (6.32%), Hepladecanoic acid (4.33%), Phytol (3.53%), Ether linoleic acid (3.45%), 2,6-dimethyl-2,6-octadiene (2.96%) and so on.

其中，含量最高的是桉油(27.20%)，其次是松油烯－4-醇(21.27%)、N甲基山鸡椒痉挛碱(6.32%)、十七烷酸(4.33%)、叶绿醇(3.53%)、乙醚基亚油酸(3.45%)、2，6－二甲基－2，6-辛二烯(2.96%)等。

It is shown in this paper that native ribonuclease and proinsulin can be nearly quantitatively formed catalyzed by PDI from a mixture of their S-sulfonated derivatives independent of the presence of each other.

我们研究了在体外PDI同时催化RNase和胰岛素原的S-磺酸型衍生物形成天然二硫键，结果表明，在合适的条件下，两者形成天然二硫键的产率互相不受影响，因此，我们推测PDI在生物体内可以同时催化多种蛋白质二硫键的形成。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。