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...
Forces at my disposal are totally inadequate to meet attack envisaged.我现有的军队完全不足以应付敌人可能发动的进攻.They envisaged the reduction by 10 % annually of tariffs on manufactured goods.他们设想对制造品的关税每年削减10%.Most desolating were those ev...