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

但为什么这种在 100 摄氏度下喷出腐物质害甲虫本身呢？

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使女接触到肥皂中腐物质。

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这个时候还在使用吗？那是一种非常有毒、腐物质？

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

您可能将其称为碱液，这是一种腐极强物质， 可用于从清理堵塞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.

他们用来做这件事化学物质显然比其他做同样事情化学物质腐更小、成本更低、效率更高。