Many openers have a magnet or set of clamps to grip the open lid.

许多开启器是用磁铁或夹具来夹紧要开启的盖子。

《柯林斯英汉双解大词典》

The only pots remaining were shaped by hand, and fired, not in kilns as in Roman times, but in open 'clamps' (a smart word for a pile of pots in a bonfire).

仅存的陶器由手工捏制，在露天以“砖垛”状（一个用来形容篝火里一摞陶器的绝佳词语）烧制，而不是像罗马时代那样在窑内烧制。

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