古人将“吉祥缸”称为“门海”，既是“门前大海”的意思。铜大缸价格这些“吉祥缸”内常年都储备有清水，一旦宫中失火，太监们就可以就进从铜缸内取水扑救。现在你可以清晰的看到大缸的壁上有许多的划痕，那都是八国联军的造孽留下的痕迹，一定要务忘国耻，振兴中华。

The ancients called the auspicious cylinder "Menhai", which means "the sea in front of the door". These "auspicious cylinders" have clear water stored all the year round. Once a fire breaks out in the palace, eunuchs can get water from the copper cylinder to fight the fire. Now you can see clearly that there are many scratches on the wall of the vat. They are all the marks left by the sins of the Eight-Power Allied Forces. We must forget our national shame and revitalize China.