Diethylstilbestrol ( DES ), is a kind of nonsteroid synthesized estrogen.己烯雌酚 ( diethylstilbestrol,DES ), 是一种非甾体类雌激素.Objective To induce hypospadias in rats by diethylstilbestrol ( DES ).目的 尝试用己烯雌酚 ( DES ) 建立尿道下裂大鼠模型.Obj...
Aspirin is synthesized through O - acylating reaction from acid and anhydride acid with anhydrous carbonate as catalyst.以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O - 酰化反应合成了阿司匹林.In 2002, we develop Photo - catalyst & electronic Ionizer A...
The pink lacquered paint covers the bronze symbolizes solar energy and fire.此雕刻以粉色包裹,象征着热情的精力与火.Use is made of solar energy in heating houses.双重定语引起的分隔.There are a lot of new buildings benefiting from the harnessing of s...