Yabla video uses of

de
什么 shénme
古代 gǔdài
yǒu
de
tóng
a
de
a
de
什么的 shénmede
Plate with what? In the past, there were copper plating, tin plating, other types of plating.
zhǐ
jiǎn
中国 Zhōngguó
地图 dìtú
I used the tinfoil to form the map of China.
然后 ránhòu
可能 kěnéng
就是说 jiùshìshuō
上面 shàngmian
好像 hǎoxiàng
shì
一层 yīcéng
类似 lèisì
xiàng
这样 zhèyàng
de
zhǐ
的话 dehuà
可能 kěnéng
jiù
上来 shànglái
的话 dehuà
就是 jiùshì
比较 bǐjiào
能够 nénggòu
保温 bǎowēn
And it's possible to say, if the top is covered with a layer like this foil, when it comes out it can hold temperature.
最后 zuìhòu
一步 yībù
shì
yòng
zhǐ
guàn
包裹 bāoguǒ
zhù
The last step is to use aluminum foil to cover the clay pot.
这个 zhège
部分 bùfèn
ne
就是 jiùshì
上面 shàngmian
de
那个 nàge
zhǐ
diào
de
This part is for cutting the tinfoil at the top off.
就是 jiùshì
jiāng
shēng
tóng
a
fàng
dào
一起 yīqǐ
演练 yǎnliàn
It's what you get when you heat up and mix raw copper and tin.
è
应该 yīnggāi
shuō
shì
zhǒng
tóng
de
合金 héjīn
Um, it's a mix of copper and tin.