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| Chinese | English |
| 多环芳香碳氢化合物 | polycyclic aromatic hydrocarbon Hydrocarbons containing two or more closed rings of atoms (包含两个或多个闭合原子结构的环状碳氢化合物。) |
| 芳香族化合物 | aromatic compound Compounds characterized by the presence of at least one benzene ring (至少含有一个苯环的化合物) |
| 芳香族碳氢化合物 | aromatic hydrocarbon Hydrocarbons having an unsaturated ring containing alternating double and single bonds, especially containing a benzene ring (包含有双键和单键的不饱和环，并且有苯环的碳氢化合物。) |
| 芳香物 | aromatic substance Substance having a distinctive, usually fragrant smell (有独特味道，一般是香味的物质。) |