A hydrocarbon is a chemical compound that is a mixture of hydrogen and carbon. 碳氢化合物
noun [物质名词][有化] 碳氢化合物
These reactions increase the probability of incomplete combustion and are more likely to release uncombusted and photochemically active hydrocarbon compounds into the atmosphere. 这些反应增加了不完全燃烧的可能性,更有可能释放未燃尽和光化学活性碳氢化合物到大气中。