多手性中心
multiple stereogenic centers
阿拉善-鄂尔多斯生物多样性中心
Biodiversity center of Alashan-Erdos
带同心中性导线的电力电缆
power cable with concentric neutral conductor
单、多活性中心种类催化剂
single-or multi-active site catalyst
单活性中心催化剂
three bases education
single living-center catalyst
single-site catalyst