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

但这在 100 摄氏度下喷出的蚀物质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.

平底锅拧干摩擦和提起衣服可能会使女接触到肥皂中的蚀物质。

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

所以这在乔治王时代的这个时候还在使用吗？那是非常有毒、蚀的物质？

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

您可能将其称碱液，这是蚀极强的物质， 可用于从清理堵塞的管道到净化饮用水等各用途。

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

他们用来做这件事的化学物质显然比其他做同样事情的化学物质蚀更小、成本更低、效率更高。