toxic chemicals

毒性化学药品，有毒化学物质;

例句:

1.

Fireworks produce brilliant coloured displays, but they also create a shower of toxicchemicals.

焰火会放射出灿烂辉煌的色彩，不过也会产生大量有毒的化学物质。

2.

Instead of the typical vats of toxic chemicals used to excite the light, northrop's guys usedrelatively small chains of garnet crystals.

与典型使用数桶有毒化学物来激光光的方式不同，诺斯普的研究者使用相对较小的石榴石晶体链