探讨了稀土化合物用作环保汽油抗爆剂的可能性.Capabilities using rare earth compounds as environmentally friendly gasoline antiknocks were explored.介绍了MMT抗爆剂在中国石油锦西石化公司的使用情况.The article introduces the application status of MMT antiknock additiv...
增长模型常常把劳动力视为同质的.Growth models usually consider labor as homogeneous.位于精细管之间的同质细胞 ( 莱代细胞 ) 产生雄激素.The intersitial ( Leydig ) cells which lie between the tubules are the source of the male hormone.同质成核作用之所以可能,是由于蒸汽中分子凝聚的统计起...