natural pigment
常见例句
- Another major class of nutritional characteristics of the natural pigment is carotenoid .
另一大类具有营养特性的天然色素是类胡萝卜素。 - Natural pigment in grain layer of goat skin and pig skin was bleached by hydrogen peroxide and ultrasound.
探讨了采用过氧化氢及超声波除去山羊皮及猪皮粒面层色素的方法。