cauldron bottoms
A notching, like that between the teeth of a saw, in the edge of anything. / One of the teeth in a serrated edge; a serration.
A device that adsorbs nitrogen oxides produced by a lean-burn engine, such as a diesel.
plural of sponge bag
plural of cauldron bottom
大釜の底は数え切れないほどの火で黒く焦げ、村が長年夜通し煮炊きしてきた証だった。
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