Scientists from Korea have turned the main ingredient of calamine lotion into a tiny material that converts sound waves into electricity.

韩国科学家将炉甘石洗液的主要成分转化成一种微细的材料，这种材料能够将声波转化成电能。

youdao

What is the main ingredient of wasabi?

芥末最主要的食材是什么？

youdao

What is the main ingredient of ratatouille?

普罗旺斯炖菜」的主要材料是？

youdao

This is the main ingredient of plaques that build up in the brains of Alzheimer's patients.

CNN: Alzheimer's: Early detection, risk factors are crucial

Structurally, the main ingredient of "One Man" (which was a huge hit in London) is the 18th-century play on which it is based, "The Servant of Two Masters, " by Carlo Goldoni.

WSJ: One Spring, Two Farces

Nanosolar is one of several Silicon Valley startups that have attracted billions of dollars in venture capital to develop a thin-film technology called copper indium gallium selenide, or CIGS. Such solar cells use little expensive silicon, the main ingredient of conventional photovoltaic cells.

FORBES: Nanosolar Snares a Gigawatt in Orders for its Thin-Film Solar Panels