In fact, it is converted to folate in the liver by the addition of four hydrogen atoms.
事实上，它在肝脏中与四个氢原子结合后转化成叶酸。
During the final stage, the water is disinfected - by the addition of chlorine, hydrogen peroxide and other chemicals and by running it past ultraviolet lights.
在最后一个步骤中，水经过氯、过氧化氢和其它化学品消毒，并且经过紫外线灯消毒。
Hydrogen brittleness: because, in addition to the erosion oil or plating process such as metal and alloy hydrogen atom absorption and cause brittle.
氢脆：由于浸蚀，除油或电镀等过程中金属或合金吸收氢原子而引起的脆性。
Finally, five addition type liquid silicone rubber get by five unvulcanized rubber vulcanizing containing hydrogen silicone oil respectively , they were vulcanized well.
在第三部分中，用五种生胶和相应的含氢硅油进行硫化生成不同的硅橡胶，发现硫化效果好。
This technique is developed on the basis of the Schaefer method (FRG) with the addition of a hydrogen extraction device to a conventional gas chromatography.
本方法是在西德谢菲尔方法的基础上，自制氢抽提装置，采用一般气相色谱仪组装成的一套比较成熟的分析方法。
In addition, before bottles of hydrogen peroxide became available, blonde hair in females could be interpreted as an honest signal of youth and therefore reproductive fitness.
此外，在瓶装的双氧水出现以前，女性的金色头发被认为是年轻的象征——年轻的女性更适合繁殖后代。
The addition reaction with hydrogen cyanide is base-catalysed.
与氰氢酸的加成是碱催化的。
Preparing cyclopentane halide by the addition reaction of cyclopentene with hydrogen halide is a simplified process with a high yield and can be used in a large scale.
环戊烯与氢卤素加成反应制备卤代环戊烷，工艺流程简单，原料经济，收率高，易实现工业化。
In addition, hydrogen sulfide may infiltrate and attack the crystalline matrix of the steel, creating conditions which can lead to weakening and failure of the steel in certain cases.
此外，硫化氢还能渗透并腐蚀钢的晶格，在某些情况下会导致钢性能的削弱甚至损坏。
In addition, both hydrogen permeation time and trapping coefficient of hydrogen increase but the hydrogen diffusivity decreases in the steel with the elevation of annealing temperature.
此外，随着退火温度的提高，氢渗透时间和氢陷阱系数也增大，而氢的扩散系数则降低。
Single-bleaching lecithin with color 7 (Gardner) was obtained by addition of 3 percent of hydrogen peroxide.
添加3%的双氧水改善大豆浓缩磷脂色泽，可以得到色泽（加特纳色度）为7的单漂磷脂。
In addition, in the chemical industry, hydrogen is used to produce ammonia, gasoline, methyl alcohol, and many other important products.
除此之外，在化学工业中，氢被用来制造氨、汽油、甲醇以及其他许多重要产品。
The addition of hydrogen to another compound, usually an unsaturated organic compound.
向其他化合物，一般为不饱和有机化合物，加入氢。
Many new compounds can be obtained by addition with water, hydrogen, alcohols, phenols, amines, amides, carboxylic acids, olefins, aldehydes, ketones, esters, etc.
与水、活性氢、醇、酚、胺、酰胺、羧酸、烯烃、醛、酮、酯加成得到的新化合物，可作脱水剂和氧化剂使用。
The results indicate that the addition of catalyst obviously influence the total gas yield and also hydrogen - containing gas yield.
催化剂的负荷量对富氢气体的产率有显著影响，其值存在一个优化范围；
In addition, hydrogen donor changed the reaction pathways and increased reaction apparent activation energy.
反应动力学考察表明，供氢剂可提高反应表观活化能。
In addition, the hydrogen isotopic composition of the hydrocarbon gas generated during hydrous experiment is obvious lighter, especially for that of ethane, compared with that of anhydrous experiment.
与无水实验相比，加水实验所生烃气氢同位素组成明显较轻，并以乙烷最为显著。
Silicone polyether surfactant was synthesized by the addition reaction of low hydrogen content silicone and allyl polyether with Pt catalyst and under no solvent condition.
通过采用铂催化剂催化低含氢硅油与烯丙基聚醚的硅氢加成反应合成了有机硅聚醚表面活性剂。
In addition, the average first-neighbour distance and the depth of effective pair potential can be increased after hydrogen charging.
另外，充氢能够增加块体非晶合金材料的原子平均最近邻距离和有效作用势深度。
Partial current for the discharge of manganese, hydrogen and zinc individually increased, decreased and kept constant with the addition of sodium sele...
硒酸钠能提高锰沉积的分电流，降低析氢的分电流，而对锌沉积的分电流影响不大。
In addition, the problem of hydrogen attack in steels is also discussed.
此外还讨论了钢中的氢蚀问题。
Addition of auto-aggregation hydrogen-producing will maintain the biomass and increase the hydrogen producing efficiency.
利用自凝集产氢细菌可以避免菌种流失，保证生物量，有利于提高系统产氢效能。
In addition a hydrogen activating method is also provided.
此外亦提供一种氢活化方法。
In addition to being less polluting, the engines are extremely efficient in converting gasoline or hydrogen into electric power to drive the vehicle.
除了会减少污染外，新的引擎还以更高的效率把汽油和氢能转化成电能，驱动汽车行驶。
In addition, the problem of hydrogen attack in steels is also disc...
此外还讨论了钢中的氢蚀问题。
With the addition of hydrogen, the thermal efficiency can increase obviously and the gasoline can save remarkably, which is of significance in saving energy and gasoline.
汽油机加氢后，能够改善燃烧，提高热效率和节省汽油，具有节能、省油和改善排放的效果。
With the addition of hydrogen, the thermal efficiency can increase obviously and the gasoline can save remarkably, which is of significance in saving energy and gasoline.
汽油机加氢后，能够改善燃烧，提高热效率和节省汽油，具有节能、省油和改善排放的效果。
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