Its hydrogenation activity in aromatics saturation and ring opening activity were investigated.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.This article reviews researches in various catalysts for alkyl aromatics peroxidation.烷基芳烃过氧化反应是酚...
Old overcoats can be reconditioned.旧大衣可以翻新.Even if our heavy overcoats were not enough to keep us warm.即使我们穿着厚大衣,还不觉得暖和.There was nobody in the streets but a few rough - looking countrymen in coarse overcoats.街上只有一些面皮粗糙的...
And, consequently , Mark was the best hated and most Calumniated man of his time.也正因为如此, 马克思才在自己所处的时代最遭嫉恨.最受诽谤.And, consequently, Mark was the best hated and most calumniated man of his time.正因为这样, 所以马克思是当代最遭嫉恨和最受诬蔑的人.An...
食物由碳水化合物、蛋白质和脂肪构成。Food is made up of carbohydrates, proteins and fats.饮食中摄入过量蛋白质可能会加速衰老。Too much protein in the diet may advance the ageing process.研究人员已经从罂粟种子里分离出一种新的蛋白质。Researchers have isolated a new protein from the ...