They refined crude oil into various petroleum products.他们将原油提炼成各种石油产品.ABout 90 % of the waxes in commerce are recovered by dewaxing petroleum.工业用蜡中约有90%是由石油中回收的.The petroleum exploration geologist working with subsurface...
Petroleum engineers plan and manage the extraction of oil.石油工程师规划并管理石油的提炼。The purpose of oil refinery is to refine crude petroleum.炼油厂的主要工作是提炼原油.They refined crude oil into various petroleum products.他们将原油提炼成各种石油产品....
...the old adage, 'Every baby brings its own love'.那句古老的谚语，“每个婴儿生来就带着爱”The adage " Trade is better than aid " is clearly of great relevance to agriculture.“ 贸易胜于援助, ” 这一格言对于农业显然是十分中肯的.Answering probably an adag...