【英语时差8,16】了解暖水瓶的工作原理-上

These days kids have styrofoam to keep soup hot. But back in the day, there were thermoses. One of their drawbacks was that since their insides were made of glass they were pretty easily broken when dropped. The popping sound they made when they broke was cool to kids, but then we weren’t the ones who had to buy a new one. A thermos¹ keeps things hot not because it generates heat like a radiator², but because it doesn’t allow heat to escape. What’s the best way to prevent heat from escaping? Insulation³. You can wrap the hot thing up in a material that doesn’t conduct heat well. Then the soup won’t be able to cool off easily, because the heat can’t escape into its surroundings.

1 thermos   

n.保湿瓶，热水瓶

参考例句：

• Can I borrow your thermos?我可以借用你的暖水瓶吗？
• It's handy to have the thermos here.暖瓶放在这儿好拿。

2 radiator   

n.暖气片，散热器

参考例句：

• The two ends of the pipeline are connected with the radiator.管道的两端与暖气片相连接。
• Top up the radiator before making a long journey.在长途旅行前加满散热器。

3 insulation   

n.隔离；绝缘；隔热

参考例句：

• Please examine the insulation of the electric wires in my house.请检查一下我屋子里电线的绝缘情况。
• It is always difficult to assure good insulation between the electric leads.要保证两个电触头之间有良好的绝缘总是很困难的。