在所有细胞中，磷是能量运送分子的一个主要成分（腺甘酸和三磷酸盐），同样也是磷脂质构成的细胞膜。
Phosphorus is a central component of the energy-carrying molecule in all cells (adenosine triphosphate) and also the phospholipids that form all cell membranes.
氧气吗当然是多多益善，而三氧化二氮分子在破坏了一系列挥发性有机化合物中的一个分子后也很快就寿终正寝了。这种有机化合物是构成白天烟雾的另一种成分。
The oxygen will bother no one, and the nitrogen trioxide soon meets its end destroying one of a range of volatile organic compounds that are another constituent of daytime smog.
一种分子的分子量就是构成它的原子成分之原子量总和。
The molecular weight of a molecule is the sum of the atomic weights of the constituent atoms.
分子梭是构成分子机器的基础，它是当前科学研究的前沿领域。
Molecular shuttle is the basic compound for constructing molecular machine the research in this field is in a front field of science.
然后像眼花缭乱的编舞一样，所有构成分子机器的部件在RNA的周围连接在一起形成称为核糖体的微型工厂。
Then in a dazzling display of choreography, all the components of a molecular machine lock together around the RNA to from a miniature factory called a ribosome.
原子结合形成分子。分子是一切物质可以被分割的最小单位。例如：分解水分子后，水就不再存在，剩下的只是构成水的原子——一个氧原子和两个氢原子。
When you break up a molecule of water, for example, you no longer have water at all, but only the atoms of which water is made — one atom of oxygen and two of hydrogen.
原子结合形成分子。分子是一切物质可以被分割的最小单位。例如：分解水分子后，水就不再存在，剩下的只是构成水的原子——一个氧原子和两个氢原子。
When you break up a molecule of water, for example, you no longer have water at all, but only the atoms of which water is made — one atom of oxygen and two of hydrogen.
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