Saccharin, which has been around since 1879, is made from methyl anthranilate, a substance in grapes.
另外一种糖精在1879年就出现了。它是由葡萄中的一种含甲基的物质构成的。
Additive compound of dipentene and methyl acrylate is a kind of new excellent non-colour transparent essence of white lemon.
双戊烯与丙烯酸甲酯的加成物是一种无色透明、具有白柠檬香气的新型香精。
The photolysis kinetics of chlorotoluron including a little acetone, methyl alcohol and acetonitrile in aqueous solution followed a first order reaction under HPML.
在高压汞灯下，含有少量的丙酮、甲醇和乙腈溶液中，绿麦隆的光化学反应符合一级动力学方程。
As the early work to build the new art of catalytic distillation hydrolysis of methyl acetate, a non-equilibrium rate model and the calculation method based on it was established.
作为开发醋酸甲酯水解新工艺的前期工作，本文针对醋酸甲酯水解催化反应精馏新工艺，建立了非平衡级反应精馏速率模型和过程模拟的计算方法。
The addition of methyl amine to ethanolamine solution can significantly increase the absorption rate of CO2, and the best mixed concentration ratio of ethanolamine and methyl a-mine is 5:1.
乙醇胺溶液中添加甲基胺可明显提高CO2的吸收速率，且混合溶剂中乙醇胺与甲基胺浓度比5：1为最佳。
The invention relates to a method for preparing adefovir dipivoxil dual oxygen methyl pivalate from adefovir.
本发明涉及从阿德福韦制备阿德福韦酯二氧新戊酸双氧甲基酯的方法。
The team looked at methylation, in which a methyl group is placed onto cytosine in DNA sequences.
工作小组关注甲基化作用，是指一个甲基群被放在DNA序列的胞嘧啶上面。
Thiomersal does not contain methyl mercury, which is a naturally-occurring compound and whose toxic effects on humans have been well studied.
硫柳汞不含有甲基汞，后者是一种自然产生的化合物，其对人类的有毒影响已得到充分的研究。
A methyl group is a basic unit in organic chemistry: one carbon atom attached to three hydrogen atoms.
甲基是有机化学的基本单位：一个碳原子连接三个氢原子。
Darwin taught us that it takes many generations for a genome to evolve, but researchers have found that it takes only the addition of a methyl group to change an epigenome.
达尔文告诉我们基因进化需历经数代，而研究人员发现只有增加一组甲基，就能改变外基因。
More than 40 tons of methyl isocyanate spilled from a Union Carbide-owned pesticide factory in Bhopal, India, in 1984, killing more than 20, 000 people in the world’s worst chemical disaster.
1984年，位于印度博帕尔的农药厂联合碳化物公司发生事故，40多吨甲基异氰酸盐泄漏，造成两万多人丧生。这是世界上后果最严重的化学灾难。
When a methyl group attaches to a specific spot on a gene - a process called DNA methylation.
甲基附加到基因上某个特殊点的过程，称为DNA甲基化。
To create it, he and his team embedded particles of gold and silver into a gel made mainly of methyl methacrylate (the raw material of Perspex). This was sandwiched between two thin, plastic sheets.
为了完成这项发明，Grzybowsk博士和他的团队将细微的金银颗粒植入主要成分为异丁烯酸甲脂的凝胶中(即制造塑胶玻璃的主要原料)，并将其夹在两片薄薄的塑料片中。
Around midnight on Dec. 2, 1984, an accident at a Union Carbide pesticide plant in Bhopal, India, resulted in 45 tons of poisonous methyl isocyanate escaping from the facility.
1984年12月2日午夜，位于印度博帕尔的联合碳化物公司的农药厂发生事故，导致45吨的有毒异氰酸甲酯从设备中泄露。
Thiomersal contains a different form of mercury (i.e. ethyl mercury, which does not accumulate, is metabolized and removed from the body much faster than methyl mercury).
硫柳汞含有另一种形式的汞(即乙基汞，它不会积累，在人体中新陈代谢和清除的速度比甲基汞要快得多)。
So, you already have a hint that methyl groups are never in the middle, they always have to be on the outside.
那么，你已经得到了一个提示，那就是甲基永远都不可能在中间，它们总是在外侧。
An analysis of a person's DNA methylation finds that the number of methyl groups attached to the DNA correlates with the person's age — making saliva analysis a possible CSI tool.
对人体DNA甲基化水平进行检测发现，结合在DNA上的甲基团数量与年龄有关，因此，唾沫分析技术有望成为犯罪现场取证工具。
This attaches methyl groups (a carbon atom and three hydrogens) to either adenine or cytosine, two of the four chemical bases that form the alphabet of DNA, depending on the gene involved.
腺嘌呤和胞嘧啶是DNA四大成分其中之二，而到底附着于哪一个则取决于具体的基因。
The invention discloses a new use of methyl liensinine.
本发明披露了甲基莲心碱的新用途。
When methyl groups are added to a histone, they modify its properties and alter the frequency at which a particular gene is expressed.
当甲基加到组蛋白后，这些基团会修饰它的性质并改变它上面特定基因的表达频率。
Latex gloves are a better option for handling thinners with methyl ethyl ketone but for only a limited duration per glove pair.
乳胶手套是处理含丁酮稀释液更好的选择，但是每副手套只能在有限的时间内处理（丁酮）。
Sulfurated seed oil and methyl seed oil have been synthesized with a method of elemental sulfur sulfuration.
利用单质硫硫化菜籽油和菜籽油甲酯的混和物制备了含硫极压添加剂。
In a large occurs is isomeric with gas, LvHuaGu, methyl bromide fumigation medicine.
在大量发生时则用氰酸气、氯化苦、溴甲烷等药熏蒸。
Methyl salicylate and camphor also may be poisonous when applied to a large area of the skin, or when combined with heat to increase absorption of the active ingredients.
当樟脑和水杨酸甲酯应用到大面积皮肤或与热相结合时会引起中毒，主要是由于提高对有效成分的吸收。
Choline is essential for fat metabolism. Choline functions as a methyl donor and it is required for proper liver function.
胆碱是脂肪代谢的必需物质，它有甲基供体的功能，是肝脏发挥正常功能所必需的。
The active hydrogen in the compound (6) might take negative effect in some reactions and was substituted by a methyl to get compound (7) which was a new chiral guanidine.
化合物(6)上与氮相连的活泼氢原子，可能对某些反应有不利影响，故用碘甲烷对其进行甲基取代，得到了新的手性胍—化合物(7)，并做了表征。
OBJECTIVE: To prepare L-dopa methyl ester hydrochloride eye ointment and establish a method for its quality control.
目的：制备盐酸左旋多巴甲酯眼膏并建立其质量控制方法。
Solidtop solid surfaces are an advanced composite of aluminum-tri-hydrate and methyl methacrylate (MMA) developed as a practical material for living.
秀丽台实体面材是一种先进的高分子复合材料，主要成分是甲基丙烯酸甲酯（MMA ）和氢氧化铝填充物。
The fat of fish and meat incomplete combustion, will produce a large number of V-methyl derivatives of ammonia, which is a strength of more than a carcinogen aflatoxin.
鱼和肉里的脂肪不完全燃烧，会产生大量的V—氨甲基衍生物，这是一种强度超过了黄曲霉素的致癌物。
The more dangerous methyl mercury, known to damage nerves, has a half-life of 44 days.
而更危险的甲基汞(可损伤神经)的半衰期是44天。
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