To whiten (a metal) by soaking in acid or by coating with tin.
在…上镀锡把(金属)浸在酸中或镀锡，使之变白。
The reactive nitrogen in acid rain kills insects and fish in rivers and lakes.
酸雨里的活性氮将河和湖里的昆虫和鱼杀死。
Objective: To study the clinical value of AG in acid-base imbalance of the newborn infant.
目的：研究阴离子隙在新生儿酸碱失衡中的临床价值。
In acid and alkali resistance, submersible pumps etc widely adopted, prolong the pump life.
在耐酸、耐碱、潜水电泵等领域广泛采用，延长水泵寿命。
They doused the fructose in acid, which catalysed a chemical reaction expelling oxygen atoms as water molecules.
研究人员们接着将果糖浸入酸溶液之中，酸溶液便会对果糖催化一种化学反应-这样水分解之时就能排除内含的氧原子。
The stuff is tough as a rock (limestone is made primarily of calcium carbonate), but it dissolves instantly in acid.
这种物质硬如磐石（石灰石主要就是由碳酸钙构成的），但易溶于酸。
For example, nitrogen can be a fertilizer, but it can stunt plant growth when nitrogen comes out of the air in acid form.
举例来说，氮可以用作化肥，但其一旦以酸的形式离开大气，就会阻碍植物生长。
The flashover voltage of polluted composite insulators is decreased with increase of SDD and the fog conductivity in acid fog and salt fog.
污秽合成绝缘子在酸雾、盐雾中闪络电压随污秽程度的增大而降低，随雾水电导率的增加而降低。
Cooking is done in acid-resistant brick-lined steel digesters or in stainless steel digesters with a capacity of about 10 to 35 tons of pulp.
蒸煮过程是在10到35吨浆容量的耐酸材料作为内衬的蒸煮锅或不锈钢蒸煮锅中进行的。
Wrap them right: Protect your ornaments before boxing them by wrapping them individually in acid-free tissue paper or 100 percent cotton cloth.
正确的包裹饰品：用防酸的绵纸或100％纯棉的布料单独包裹每件饰品，可防止饰品互相磕碰。
Since these carbonates dissolve in acid, the persistence of these mounds indicates that water perhaps less acidic and more favorable for life might have once flowed across Mars.
因为这些碳酸盐能被溶解在酸中，所以这写小丘的存在表明这些没那么酸并且适宜生命存在的水可能在火星流淌。
Since these carbonates dissolve in acid, the persistence of these mounds indicates that water perhaps less acidic and more favorable for life might have once flowed across Mars.
因为这些碳酸盐可以溶解在酸中，这些岩石能长久保存下来就说明在火星上可能曾经流动着酸性并不太大，更适宜生命存在的水。
Antacids are alkaline and they relieve pain by neutralizing acid in the contents of the stomach.
抗酸剂是碱性的，它们通过中和胃容物中的酸来缓解疼痛。
Litmus paper turns red in the presence of an acid.
石蕊试纸遇到酸就变红。
The acid test of a good driver is whether he or she remains calm in an emergency.
在紧急情况下能否保持冷静是对一个好司机的严峻考验。
Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert.
研究这种药草的农学家发现，它会产生大量的组氨酸，这种氨基酸在试管溶液中会使这些金属具有化学惰性。
Analysis by gel electrophoresis revealed slight differences in amino acid sequence of the enzymes of two of the four pairs.
经凝胶电泳分析，发现四对实验对象中有两对的酶的氨基酸序列略有差异。
Also, in surface water, there is a weak acid, carbonic acid, not sulfuric acid, but carbonic acid that helps dissolve the rock.
另外，在地表水中存在一种弱酸，它是碳酸，而不是硫酸，而且是能帮助溶解岩石的碳酸。
The mice produce a special thing named glutamic acid in their bodies.
老鼠体内会产生一种叫做谷氨酸的特殊物质。
In this paper, the process of polymalic acid (PMLA) synthesis was studied.
本文对合成聚苹果酸的过程进行了研究。
The synthesis method of L cysteic acid and its application in medicine, cosmetics and detergent has been discussed.
主要介绍了重要生化试剂磺基丙氨酸的合成方法及其在医药、化妆品、洗涤剂等方面的应用 。
Study the best method for extraction of p-coumaric acid in Oldenlandia diffusa Roxb.
研究提取白花蛇舌草对香豆酸的最佳方法。
The objective is to establish a method to determine the content of protocatechuic acid in Scutellaria barbara.
目的是要建立测定黄芩中原儿茶酸含量的方法。
The paper reviews the present situation of pivalic acid preparation in China.
本文评述了我国特戊酸合成的现状。
The inhibitory effects of 4-hydroxycinnamic acid on the activity of monophenol oxidase in tyrosinase were studied using enzymological kinetic method.
采用酶动力学方法研究了对羟基肉桂酸对酪氨酸酶单酚酶的抑制效应。
The use of performic acid, an affordable and easily prepared reagent, in epoxidation led to quantitatively the target epoxide.
在环氧化反应中，利用价廉、易制备的过氧甲酸以几乎定量的收率得到了环氧化合物。
Serum homovanillic acid (HVA), FSH, LH and testosterone (TS) were examined in healthy first degree relatives of schizophrenic patients.
应用高压液相和放免分析法测定精神分裂症病人一级健康亲属的血清高香草酸（HVA）、FSH、LH和睾酮（TS）浓度。
Ferulic acid (FA) and p-coumaric acids are phenolic antioxidants present in a variety of plants.
阿魏酸（FA）和对香豆酸是存在于多种植物中的酚类抗氧化剂。
Ferulic acid (FA) and p-coumaric acids are phenolic antioxidants present in a variety of plants.
阿魏酸（FA）和对香豆酸是存在于多种植物中的酚类抗氧化剂。
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