目的构建β淀粉样前体蛋白裂解酶 ( BACE ) 特异性小干扰RNA真核表达载体.Objective To construct eukaryotic expression vector of siRNA specific for � � - site APP cleaving enzyme ( BACE ).褐藻胶裂解酶能裂解褐藻胶制备寡糖, 是一种重要的工具酶.Alginate lyase can degrade alginates ...
Davis won the 400m. hurdles in a new Olympic time of 49.3 sec.戴维斯以49.3秒的成绩刷新奥运会纪录，在400米跨栏赛跑中一举夺冠。There are several hurdles to be got over in this project.在这项工程中有一些困难要克服.I came to the hurdles and stood looking over into t...
The later period of karst corrosion deposit experienced lateritization, had accomplished the red clay basic characteristic.岩溶残余堆积物后期又经历红土化作用, 造就了红粘土的基本特征....