adj.基础的；基本的；根本的
The effe cts of three common white-making ingredients, which are Hydroquinone, Arbutin extract and Kojic acid, on tyrposinase were detected with L-Tyrosine as substrat e in vitro. 用L-酪氨酸酶作底物,体外测定了三种常用美白剂(对苯二酚、熊果苷、曲酸)对酪氨酸酶活性的影响。
the stainless steel substrat the thickfilm heater-element 不锈钢基片厚膜电热元件
Substrat 基质
