a colorless toxic gas with a pungent almond odor; has been used in chemical warfare
例句
用作名词 (n.)
The color of the coma surrounding the head of the comet is tinged green by slight amounts of the molecule cyanogen. 围绕在彗星头部的彗发略显绿色是由小部分氰分子形成的。
The free cyanogen determinator is used to make density analysis of free sodium cyanide in the cyanide leaching solution of gold ore. 游离氰测定仪用于金矿氰化液中的游离氰化钠浓度分析。