Whether such allotropes exist remains to be seen.

种同异形体是否存在还有待观察。

The boffins behind it think that new physical forms of the element, known as allotropes, may offer ways around both the partial-combustion and the toxicity problems.

研究为，种新物理形式，即同异形体，可能会提供解决部分燃烧和毒性问题方法。

Allotropes of an element can have very different properties from each other (graphite and diamond, for example, are both allotropes of carbon).

一种同异形体可能彼此具有非常不同性质(例如，石墨和金刚石都是碳同异形体)。