只有一名穿制服的无聊警卫可能偷听到了他们的谈话。Only a uniformed guard stultified with boredom might have overheard them.厨房内充斥着烘干制服的难闻气味。The kitchen was rank with the smell of drying uniforms.由穿制服的男仆为客人倒茶。The tea was served to guests by liverie...
腐殖酸通常被看作是芳烃化合物的聚合物.Humic acids are usually regarded as polymers of aromatic compounds.芳烃加氢饱和及开环反应是一种提高柴油十六烷值的有效途径.Its hydrogenation activity in aromatics saturation and ring opening activity were investigated.扬子石化芳烃厂吸附塔出...