Petroleum engineers plan and manage the extraction of oil.石油工程師規(guī)劃并管理石油的提煉。The purpose of oil refinery is to refine crude petroleum.煉油廠(chǎng)的主要工作是提煉原油.They refined crude oil into various petroleum products.他們將原油提煉成各種石油產(chǎn)品....
They refined crude oil into various petroleum products.他們將原油提煉成各種石油產(chǎn)品.ABout 90 % of the waxes in commerce are recovered by dewaxing petroleum.工業(yè)用蠟中約有90%是由石油中回收的.The petroleum exploration geologist working with subsurface...