Cultural Relic of China- [ 翻译此页 BETA ]The basic characters of pot were that the dish-shaped mouth, the neck and the ear-shape handle were all stuck on the shoulder. ... the shape of the wares mostly for everyday life, such as bowl, plate, kettle, jar and vase etc. ...
m6789.com/en1/museum/akd.asp?sys_id=248 - 35k - 网页快照 - 类似网页


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Note added at 19分钟 (2007-08-31 19:10:17 GMT)
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釜 = cauldron/ pot/ kettle

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Note added at 22小时 (2007-09-01 17:35:48 GMT)
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Another sample of using dish- shaped mouth.
Agreement between the Government of Australia and the Government ...- [ 翻译此页 BETA ]166 Celadon vase with dish-shaped mouth and eight loop-handles. Southern Dynasty. Height 26 cm. Unearthed in 1964 at Jui-an, Chekiang .... White pottery ho (kettle), 250 000. 38, Black pottery plate with high stem, 1 250 000 ...
www.austlii.edu.au/au/other/dfat/treaties/1976/13.html - 91k - 网页快照 - 类似网页

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However, I checked again on 盘口釜


盘 is tray or dish; Found others also use tray-shaped mouth.
To be safe, I suggest instead of using kettle/cauldron use 'pot' like below:

青瓷双系盘口壶中文名称: 青瓷双系盘口壶. 英文名称: Celadon pot with two handles and a tray-shaped mouth. ...
www.ndcnc.gov.cn/datalib/2002/Ware/DL/DL-172500 - 16k - 网页快照 - 类似网页

Chinese Word Detail - CantoDict大 daai6 da4 dai4 -
鬲(cauldron), ...
www.cantonese.sheik.co.uk/dictionary/words/39355/ - 26k - 网页快照 - 类似网页
cauldron is actually a 3 legged kettle.
large mouthed in Chinese they commonly use 大口 when describing.