noun 下载 🔗分享 乙烷 An aliphatic hydrocarbon, C2H6, gaseous at normal temperatures and pressures, being a constituent of natural gas. Examples : "Natural gas used for heating often contains ethane, along with methane and other hydrocarbons. " 用于取暖的天然气通常含有乙烷,以及甲烷和其他碳氢化合物。 compound substance chemistry fuel science 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 乙烷,乙基取代物 The same compound, subjected to modification by replacing one or more of the hydrogen atoms with other radicals. Examples : "Instead of pure ethane, many industrial processes use ethane where some of the hydrogen atoms have been replaced with chlorine atoms to create useful chemical building blocks. " 许多工业流程使用的并非纯乙烷,而是乙烷的乙基取代物,其中一些氢原子已经被氯原子取代,从而产生有用的化学结构单元。 compound chemistry substance 与AI对话词汇游戏阅读练习