acids

Ribose and deoxyribose are constituents of the nucleic acids RNA and DNA.

核糖与脱氧核糖分别是核糖核酸与脱氧核酸(DNA)的结构成分.

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。

After extensive research, Albert Hoffman first succeeded in synthesizing the acid in 1938

经过大量研究，艾伯特·霍夫曼于1938年首次成功合成了该酸性物质。

The preparation of salts of thionic acids illustrates this point.

硫逐酸盐的制备说明这一点.

Acids produce positively charged hydrogen atoms when dissolved in water.

酸在水中溶解时可生成带正电荷的氢原子。

There are many amino acids that the body cannot synthesise itself.

有许多种氨基酸人体自身不能合成.

Nor is acid rain always, and universally, a bad thing.

酸雨也并非在任何情况下都是坏事。

Zinc displaces the hydrogen of dilute acids.

锌置换了稀酸中的氢.

Acids eat into metals.

酸会腐蚀金属.

It is treated with acid before being analysed.

对它先用酸处理再进行分析。

There are many amino acids that the body cannot synthesize itself.

有许多种氨基酸人体自身不能合成。

Litmus paper turns red in the presence of an acid.

石蕊试纸遇到酸就变红。

If your soil is very acid, add lime.

如果土壤酸性太强，就加些石灰。

How do acids react on metals?

酸对金属会起什么样的化学反应?

These wines may taste rather hard and somewhat acid.

这些酒可能喝着比较冲并且有股酸味。

The somewhat acid flavour is caused by the presence of lactic acid.

这种微酸的味道是因为含有乳酸造成的。

Strong acids attack metals.

强酸性物质腐蚀金属.

Sulfur emissions from steel mills become acid rain.

炼钢厂排放出的硫形成了酸雨。

Some acids are strong enough to burn the wood.

有些酸的酸性强得可以烧坏木头.

Cars cause pollution, both smog and acid rain.

汽车造成的污染既有烟雾也有酸雨。

The acid test of a school is 'would you send your own children there?'

“你会将自己的孩子送去那里吗？”这一问题是衡量一所学校的试金石。

Metals are eroded by acids.

金属易为酸所腐蚀.

Acids in the stomach destroy the virus.

胃酸能杀死病毒。

Acid corrodes metal.

酸腐蚀金属。

Sulphur dioxide is a pollutant and a major contributor to acid rain.

二氧化硫是一种污染物，并且是形成酸雨的主要因素。

Ulcers occur when the stomach's natural acids eat into the lining of the stomach.

胃酸侵蚀胃内壁引发溃疡。

Rust and acids are corrosive.

锈与酸都是腐蚀性的.

The acid etched holes in the crystal surface

那种酸在晶体表面蚀刻出一些小孔。

Acids neutralize alkalis and vice versa.

酸能使碱中和,碱亦能使酸中和.

What's the scale that's used to compare the strength of acids and alkalis?

用何种标准来比较酸碱度？