啤酒泡沫环主要成分为高分子肽、多酚物质、碳水化合物、金属离子等。

The main components of beer bubble ring are macromolecular peptides, polyphenol matter, carbohydrate and metal ions etc.

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用填缝材料和喷雾泡沫器把你能找到的地下室里框架和砖石墙之间、贯穿环托梁或外墙的管道或电线周围的每条裂缝堵住。

Walk around the basement with caulk and cans of spray foam and plug every gap you can find between framing and masonry and around pipes or wires that penetrate the rim joist or exterior walls.

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聚苯乙烯泡沫塑料是一种加工塑料，主要由被称作苯基团的碳环和氢环构成，苯基团连接到能降解成更小苯乙烯单元的长链碳氢化合物上。

Polystyrene foam is a manufactured plastic primarily made up of rings of carbon and hydrogen, called phenyl groups, attached to long hydrocarbon chains that can break into smaller styrene units.

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