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

但为什么这种在 100 摄氏度下喷出的腐蚀性物质不会伤本身呢？

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还在使用吗？那是一种非常有毒、腐蚀性的物质？

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

您可能为碱液，这是一种腐蚀性极强的物质， 可用于从清理堵塞的管道到净化饮用水等各种用途。

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他做同样事情的化学物质腐蚀性更小、成本更低、效率更高。