He is an expert in juvenile delinquency.他是研究青少年犯罪的专家。Some people say that violent movies are potential triggers for juvenile delinquency.一些人说暴力影片可能引起青少年犯罪.We can curb juvenile delinquency by education.我们可以通过教育来控制少年犯罪.an ...
服用大量维他命A可改善暗光适应.Taking large doses of vitamin A can improve one's dark adaptation.海洋糖原与微量矿物组合,可改善皮肤活力,紧致肌肤.The mineral micro combination can improve the skin vitality and skin firmness.运用压裂工艺改造这些油藏,可改善其开发效果、制递减.Rese...
Cyclization occurs readily with dilute alkali.遇到稀碱就容易环化.Menthol was obtained from lemon eucalyptus oil via cyclization and catalytic hydrogenation.以柠檬桉叶油为主要原料经环化、催化氢化二步反应得到薄荷醇.METHODS Cilnidipine was synthesized from cin...
Ancient people made clay pottery because they needed it for their survival.古代人制作陶器是因为他们的生存需要它.The original clay pottery is a pottery, producing a simple surface, no decoration.原始陶器是泥质陶器, 制作简单,表面无装饰....