您要查找的是不是：
- nicotinic acid amide-original called p-p for pellagra preventing 维生素PP, 烟酰胺, 烟酸
- niacinamide, nicotinic acid amide-original called p-p for pellagra preventing 维生素PP, 烟酰胺, 烟酸
- nicotinic acid amide-original called p-p for pellagra preventing niacinamide 维生素PP, 烟酰胺, 烟酸
- niacin pellagra preventive factor 抗糙皮病因子, 抗蜀黍红斑因子, 烟酸
- vitamin PP pellagra preventive factor PP因子, 抗癞皮病因子, 维生素PP
- pellagra preventive factor, niacin 抗糙皮病因子, 抗蜀黍红斑因子, 烟酸
- pellagra preventive factor, vitamin PP PP因子, 抗癞皮病因子, 维生素PP
- Assed with substances to prevent caking. 加入此物质为避免结成固体状。
- Substances consist of small particles called molecules. 物质是由叫做分子的微粒组成的。
- What can we do to prevent the disease spreading? 我们能做什么来防止这种疾病蔓延呢？
- The washer for preventing leakage is broken. 那个防漏的垫圈坏了。
- The act of obtaining usable substances from unusable sources. 废物利用从无用的东西中获取有用物质的行为
- The authorities took measures to prevent tax fraud. 当局已采取措施防止偷税漏税。
- The mixture will resolve into three simple substances. 这种混合物可分解成三种单纯状之。
- Does prison do anything to prevent crime? 采取关押方法对制止犯罪有作用吗？
- Dust the repair to prevent adhesion to outer cover. 清整修补处以防与外胎粘连。
- Capable of preventing conception. 节育的能够防止怀孕的
- Stir the sauce to prevent it lumping. 把沙司搅拌一下以免结块。
- We should take steps to prevent war. 我们应当采取措施制止战争。
- Chemicals in the body break our food down into useful substances. 人体中的化学元素把食物分解成有用的物质。
