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We used the reported chiral ligand QD-4 derived from quinidine to catalyze the reaction of aldehydes and methyl vinyl ketone in the presence of various additives and found that the highest e.

用喹尼叮衍生物QD-4分别催化醛和丁烯酮以及醛和丙烯酸-萘酚酯的不对称Baylis-Hillman反应，通过改变添加剂和优化反应条件，最终分别取得了最高为49％和70％的e.e值。

Vitamin E, or tocopherol, is a lipid-soluble antioxidant and essential for human health. 2-methyl-6-phytyl-1, 4-benzo- quinol methyltransferase, one of the key enzymes in vitamin biosynthetic pathway in plants, converts 2-methyl- 6-phytyl-1,4-benzoquinol to 2,3-dimethyl-6-phytyl-1,4-benzoquinol.

维生素E是一类人体必需的脂溶性抗氧化剂，具有重要的生理功能。2-甲基-6-叶绿基-1，4-苯醌甲基转移酶是天然维生素E合成途径中的关键酶之一，催化MPBQ甲基化，生成DMPBQ。

Although the germ only constitutes 3% of the weight of a wheat grain, it contains nearly 25% of the protein, vitamins and minerals.The oil is very high in vitamin E and essential fatty acids and because of its high vitamin E content, which is a natural antioxidant which helps to prevent rancidity, it is often added to other carrier oils to help lengthen their shelf life and to prevent them going off.

大概就是这个意思，最好还是不要单独用，因为营养成分太高，且肤感比较厚重，但我认为这个油是玩芳疗的MM，必须选购的一种基础油，天然抗氧化剂，抗老化剂，高浓度的维他命E，对于皮炎，恢复受损细胞，对于运动后的肌肤，都很有好处，在月经疾病的理疗方面，成了最常用的油，作为运载油是很好的选择。

Basing on electromagnetism theory characteristic of light wave, the formula of the relation of refringence e light is inferred under any axis location and any angle, when it is refracting.

基于平面光波在晶体中传播的电磁理论特性，推导了光波在晶体表面折射时，双折射光波中e光线透过晶体出射点的位置受到任意光轴取向、任意入射角影响的关系式；利用MATLAB对关系式进行了数值计算分析，绘出双折射e光与任意光轴取向、任意入射角关系曲线，并给出了对应的定量关系式；实验验证了该公式是正确的。

RRR-α-tocopheryl succinate , a derivative of natural vitamin E, is a potent inhibitor of various cancer cell types in vitro and in vivo.

维生素E琥珀酸酯是天然维生素E的衍生物，因其能够抑制多种肿瘤细胞的生长、对正常细胞无不良影响而倍受关注。

"A, I, O, U, E," are the 5 frequent vowels, they correspond to the Spanish, Japanese, Italian and Rumanian vowels.

1，开音节中五大元音a/ɑ/，i/i/，o//，u/u/，e/E/相当西班牙语、意大利语、日语中的相应音素。

In chapter 1, the achievement on multiple-valued logic at home andabroad is introduced briefly. In chapter 2, some decisions for theminimal covering of the regular separable sets in partialmultiple-valued logic is studied under the condition of σ=e andm=2 . We reach some conclusions that certain regular separable setsmustn't be the minimal covering of Pk under some conditions.

第一章，简要介绍了国内外在多值逻辑方面的研究成果；第二章，对部分多值逻辑中，当σ=e时，二元正则可离函数集最小覆盖之判定作了研究，并得出了当σ=e时，一些满足一定条件的二元正则可离函数集不是Pk 之最小覆盖成员的结论。

Here, we characterize sequential separability and prove that l_p is a separable space if and only if E is a separable space and l_p is a GAK_space.

关于Banach序列空间lp，讨论的主要问题之一就是E的几何性质能否提升到lp中去，在文中，刻划了lp的序列可分性，证明了lp是可分的当且仅当E是可分的以及lp是GAK 空间

The results show that the E WOOL process is a new shrinkproof technique of wool excluded chlorination and resin used for covering fiber.

对E WOOL的处理技术特点和产品性能进行了研究，结果表明，E WOOL是完全不使用氯气及氯化合物，不覆盖树脂进行加工的羊毛防缩新技术。

The peak currents i p and peak potentials E p of the oxidation peaks for sodium dichromate solution of different concentrations, i.e ., water under the existence of sodium dichromate, were experimentally measured at different temperatures and sweep rates v on the electrode.

实验测得不同温度、不同扫描速度 v 、不同浓度重铬酸钠溶液即重铬酸钠存在下水在电极上的氧化峰峰电流ip和峰电位Ep，建立了 i p～ v 1/2和 E p～ln v 方程，表明电极反应是主要受扩散控制的不可逆反应。

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。