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单词
nutrients
释义
nutrients
Encyclopedia
工学
营养素
释
nutrients
营养素
食物中能被吸收及用于增进健康的化学物质。是维持正常生命活动所必需摄入的食物成分。
理学
营养盐
释
nutrients
营养盐
生态系统中的初级生产者(主要是浮游植物)维持生长发育与新陈代谢生命活动过程必须的元素(金属离子、氨离子和酸根离子组成的化合物)。
随便看
period of a function
period of a group
period of alternating current
period of an element
period of an ergodic class
period of an oscillation
period of a semigroup
period of a wave
period of coefficients
period of dormancy
period of intercalary month
period of light variation
period of limitation of administrative litigation
period of military government
period of moon's node
Period of Political Instruction
Period of Political Instruction Constitution of Republic of China
period of pseudorandom numbers
period of revolution
period of revolution, orbital period
Period of Rex in Rome
period of rotation
Period of Southern and Northern Courts
period of submergence tolerance
period of translations
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