Zinc is a chemical element which is very important to our health.
锌是一种对人体健康很有益处的元素。
镭是一种化学元素。
Uranium is a chemical element.
铀是一种化学元素。
The chemist found a new chemical element.
那位化学家发现了一种新的化学元素。
Hydrogen is the most simple chemical element.
氢是最单纯的化学元素。
It is the discovery of a new chemical element.
它是一种新化学元素的发现。
Lead is a chemical element that can be used in building construction.
铅是一种化学物质，可以作为建材使用。
Also, silicon is a very common chemical element, whereas germanium is relatively rare.
除此之外，相对于含量稀少的锗元素，硅是相当普遍的化学元素。
The product was identified by melting point, chemical element analysis and IR spectra analysis.
采用熔点测定、元素分析、IR验证了产品的结构。
The product was identified by melting point, chemical element analysis and IR spectra analysis.
采用熔点测定、元素分析、IR验证了产品的结构。
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