在已知的百余种元素中，生命过程中所必须的27种元素，称为生物元素．生物体所采用的构成自身的元素，都是经过长期选择确定的．生物元素都是在自然界中含量丰富的，容易得到的元素。它们主要是轻元素，生物元素组成生命所需无机物和有机物。
生物元素
网络释义专业释义
双语例句原声例句
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所以我们一直在讨论营养，环境中的元素对于生物体的发展，健康的生活和繁殖是必不可少的。
So we've been talking about nutrients, the elements in the environment that are essential for living organisms to develop, live a healthy life, and reproduce.
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砷是一种对地球上所有其他生物有毒的元素，除了对少数特别的极小的生物。
Arsenic is an element poisonous to every other living creature in the planet except for a few specialized microscopic creatures.
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当用户点击地球元素的时候可以让树发芽，或者可以显示海洋生物在水元素中游泳。
You can have a tree sprout when the user clicks on the Earth element, or you can show sea creatures swimming in the water element.
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So if we consider lithium, potassium, and sodium, they're all together in the same group on the periodic table, knowing what we do about biology we can immediately think of sodium and potassium, or even just knowing what you know about table salt, for example, that these are two elements that we find, and particularly in the ion form in very high concentrations in our body.
我们来考虑一下锂，钾和钠，它们都在周期表中的同一族里，想要知道我们将元素周期律,用到生物学会怎么样，我们首先想到的就是钠和钾，甚至只需要知道食盐，我们发现它们是以很高浓度的离子形式,存在于我们体内的两种元素。
应用推荐
$firstVoiceSent
- 来自原声例句