Oil painting art of painting portraits is an important component form, and a distinct language of art.

油画肖像画是油画艺术的一个重要组成形式，具有相当鲜明的艺术语言。

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And because the key component of solar cells is an expensive, highly purified form of silicon, there's a real economic benefit to this design.

VOA: standard.2010.02.19

But look at the lattice energy, the Madelung energy component is huge which tells you that when ions form they really want to continue to glom onto one another and form that giant crystal.

看看晶格能，马德龙能很大,这告诉我们，当形成离子是,它们如果要继续的话,需要从另外一方夺取电子，形成巨大的晶体。

麻省理工公开课 - 固态化学导论课程节选

Rosanne and two other scientists decided to block the gene for apolipoprotein B, the main component in the form of cholesterol that contributes to heart attacks.

FORBES: Degunker

UKIP's 13 MEPs form the biggest component of Europe of Freedom and Democracy.

BBC: UKIP forms new Eurosceptic group

As such, they form an essential component of marine observing systems established as part of the World Weather Watch, the World Climate Research Programme, the Global Ocean Observing System, the Global Climate Observing System and other meteorological and oceanographic operational and research programmes.

UNESCO: THEMES