Flavonoids, Phenols and triterpenes are the main constituent exist in Desmodium triquetrum(L. )DC.

葫芦茶中主要含黄酮类、酚类及三萜类等化学成分。

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Punctuality is the main constituent of good character.

守时是良好品格的主要组成部分。

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Side parking lot is the main constituent part of city parking facility.

路内停车是城市停车设施的重要组成部分。

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They allege that the company's drilling polluted their water with chemicals,metals and methane, the main constituent of natural gas, causing explosions as well as gastrointestinal and neurological illness.

VOA: standard.2010.01.02

Dr Biermann and Dr Kusenko think that one in particular of these hypothetical particles known as a sterile neutrino will turn out to be the main constituent of dark matter.

ECONOMIST: Research from the beginning of time

In addition to its main constituent venues, the 10.5 hectare site also has one of the city's biggest health and fitness centres, a luxury spa, an outdoor 1km closed cycle circuit and four outdoor five-a-side football pitches.

BBC: Glasgow Commonwealth Games venue named Emirates Arena

Their main gripe is that the constituent assembly that has been acting as Venezuela's supreme power since its election last July has packed the electoral tribunal with government supporters.

ECONOMIST: Venezuela: Unchecked, unbalanced | The