Carbon dioxide emissions stem mainly from the combustion of fossil fuels and the manufacture of cement.

二氧化碳排放主要源自矿物燃料的燃烧及水泥制造。

youdao

The internal background was mainly grey color of cement, white painted brick wall, accented by small amount of black painted steel details and dark brown red laminated wood furniture.

室内背景的颜色主要是水泥灰和漆成白色的砖墙，配以少量的黑色涂漆钢和暗褐色红木家具。

youdao

This paper mainly introduces the main points of making plastic rockery stone in cement.

本文主要介绍水泥塑石假山中的制作要点。

youdao

That is thanks mainly to the cement business, which is a sturdy cash cow.

ECONOMIST: Votorantim

They are mainly big polluters like steelworks, cement plants and power generators.

NPR: Some Economies Suffer As Beijing Cleans Up Air