1)transitional herbicide,过渡性灭草剂2)non-selective herbicide,灭生性除草剂3)non selective herbicide,非选择性灭草剂4)transitional zone from forest to grassland,林草过渡带5)chiral transition metal catalyst,手性过渡金属催化剂6)Dynoram,草灭酚混剂
用法例句
Catalytic asymmetric cyclopropanation by chiral transition metal catalyst;
