fā​pào​jiāo

expanding foam

发泡胶 (發泡膠) fā​pào​jiāo
expanding foam
a sprayable polyurethane foam sealant that expands and hardens to fill gaps and cracks in construction and DIY projects
styrofoam
expanded polystyrene (EPS), a lightweight plastic material used primarily for packaging, disposable containers, and thermal insulation

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CC-CEDICT