儿茶酸还可能预防致癌物质引起的DNA损伤.Cate - chins may also prevent DNA damage caused by carcinogens.结果: 在TLC色谱中可检出冰片 、 儿茶的特征斑点.Results: Borneolum yntheticum, Catechu ould be identified by TLC.儿茶酚还可能预防致癌物质引起DNA损伤.Catechins may also preve...
...improving the yield of the crop...提高农作物产量When the summer crop is ripening, the autumn crop has to be sowed.夏季作物成熟时, 就得播种秋季作物.The islanders could barely survive without an export crop.没有出口作物,岛上的居民几乎无法生存。It also demonst...