名詞 heptane:

1. a colorless volatile highly flammable liquid obtained from petroleum and used as an anesthetic or a solvent or in determining octane ratings

hep.tane

n.（名詞）
A volatile, colorless, highly flammable liquid hydrocarbon, C7H ', obtained in the fractional distillation of petroleum and used as a standard in determining octane ratings, as an anesthetic, and as a solvent.
庚烷：一種易揮發(fā)、無色、非常易燃燒的液狀碳氫化合物，C7H '，由石油的分級蒸餾而來，用作辛烷分級的標準，亦可作麻醉劑和溶劑