So this is still being used at this time in the Georgian era? The ceruse which is very poisonous, corrosive substance?

所以乔治王时代的个时候还使用吗？那是一非常有毒、腐蚀性的物？

But why doesn’t this caustic substance, ejected at 100 degrees Celsius, hurt the beetle itself?

但为什么 100 摄氏度下喷出的腐蚀性物不会伤害甲虫本身呢？

Pan wringing rubbing and lifting the clothes could expose women to caustic substances in the soaps.

搓洗、揉搓和提举衣物可能会让女性接触到肥皂中的腐蚀性物。

You may know it as lye, an extremely caustic substance that's used for everything from clearing clogged pipes to purifying drinking water.

你可能知道它叫烧碱，是一极强的腐蚀性物， 用途广泛， 从清理堵塞的管道到净化饮用水都有它的身影。

The chemical they use to do this is apparently less corrosive, less expensive, and more efficient than other chemicals that do the same thing.

他们用来做件事的化学物显然比其他做同样事情的化学物腐蚀性更小、成本更低、效率更高。