三光气作为剧毒的光气和双光气在合成中的替代物，不但毒性低，使用安全方便，而且反应条件温和、选择性好、收率高。
The triphosgene, being as the substitute for phosgene and diphosgene in synthesis, is not only low-toxic but also safe and convenient to use with mild conditions, good selectivity and high yields.
尽管毒性有所不同，但毫无疑问的是它们都是带有剧毒的。
All known pit vipers are venomous, although their potency varies across species.
本目录所称剧毒化学品是指具有非常剧烈毒性危害的化学品，包括人工合成的化学品及其混合物（含农药）和天然毒素。
The highly toxic chemicals mentioned in the Catalogue refer to those with acute toxic hazard, including the manually synthesized chemicals and their mixtures (including pesticides) and natural toxins.
应用推荐