... 添加剂型阻燃剂：additive type flame retardant 天然总管：natural gas main 天然纤维水带：natural fibre hose ...
双语例句
1
Methane, familiar to most people as the main component of naturalgas fuels, is a greenhouse gas less common than carbon dioxide in the atmosphere but far more potent.
甲烷是人们所熟悉的一种气体，是天然气燃料的主要成分。
2
And because it is the main ingredient in naturalgas, it leaks from many older natural-gas pipelines.
而且因为甲烷是天然气的主要成分，它通过许多老式的天然气管道泄露。
3
The challenge is to take a molecule of methane, the main component of naturalgas consisting of one carbon atom and four hydrogen atoms, and turn it into something bigger.