They belong to a class of sugar-based chemical compounds, also known as flavonoids.

它们属于一类糖基化合物，这种化合物也被称为黄酮。

youdao

Cocoa contains chemical compounds called flavanols.

可可中包含一种被称为黄烷醇的化学成分。

youdao

"We did find two or three microorganisms that produced some new chemical compounds," Cano says.

“我们找到了两到三种微生物，可以用他们制作一些新的化合物”，卡诺说。

youdao

Flavor aside, scientists have recognized it as a complex blend of chemical compounds with potential health effects, both good and bad.

VOA: standard.2010.06.30

But in an era of plastic explosives and advanced chemical compounds, that system has proved lacking.

VOA: standard.2009.12.30

"Right now we're mostly sampling for hydrocarbons and other bacteria, but what we would like is expand into some other chemical compounds that may be contained within the dispersants."

VOA: standard.2010.06.01

Stored at a dry -20C and robotically-selected, it has the capacity to store 90 million chemical compounds.

BBC: Science of life in the economy

These signs and symptoms develop because this type of tumor produces an excess of chemical compounds called catecholamines.

CNN: Pheochromocytoma

In Fujifilm's library of 200, 000 chemical compounds, some 4, 000 are related to anti-oxidants.

ECONOMIST: Technological change