Some lixiviants use concentrated acids which can carry environmental and health risks.

一些浸出剂使用浓酸，这可能会带来环境和健康风险。

Mixing concentrated acids and bases releases so much heat that it can result in an explosion.

混合浓酸和碱会释放大量热量，可能会导致爆炸。

That's ten thousand times stronger than magic acid, ten million billion times stronger than pure sulfuric acid, and a million billion trillion times stronger than concentrated hydrochloric acid — an acid that's already strong enough to give you very severe burns.

其酸性要比魔酸强一万倍，相当于纯硫酸的亿亿倍，相当于浓盐酸的千亿亿亿倍，浓盐酸已经能对你造成严重的灼伤了。

On one side, we have a cotton ball that's soaked with concentrated ammonia, and on the other side, a cotton ball soaked with concentrated hydrochloric acid, which is why we're doing this in a lab, and not at my desk.

一方面，我们有一个浸有浓氨水的棉球，另一方面，有一个浸有浓盐酸的棉球，这就是为什么我们在实验室而不是在我的办公桌上做这个。