英文英文字典
英文英文字典
古腾堡计划中的在线英语-英语词典
结果
Anthracene的结果
Anthracene
(n.)
A solid hydrocarbon, C6H4.C2H2.C6H4, which accompanies
naphthalene in the last stages of the distillation of coal tar. Its
chief use is in the artificial production of alizarin.