Bitumen
volume
British pronunciation/bˈɪt‍ʃuːmən/
American pronunciation/ˌbaɪˈtumən/, /ˌbɪˈtumən/

"bitumen" 的定义和意义

Bitumen
01

沥青

any of various naturally occurring impure mixtures of hydrocarbons
02

沥青

a thick, black or dark brown substance made from petroleum that is used to make roads and roofs
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