化学染料 meaning in English

chemical coating

I didn ' t use any chemicals . they are bad for the hair . they can also cause hair loss
我没有用过任何的化学染料，它们伤害头发，同时能引起脱发。
In the recent years , some factories use chemical dyestuff and the mills adhering to use indigo become estimable and commendable
近年有的厂家改用化学染料，坚持用植物染料的作坊变得难能可贵。
The national academy of sciences says greenhouse gases have increased significantly since the industrial revolution , mostly from the burning of fossil fuels for energy , industry and transportation
国家科学研究所表示，自工业革命以来，温室气体疯狂增长，主要来源是用于能源、工业和运输行业的化学染料的燃烧。