n.起泡；发泡
adj.起泡的；发泡的
动词froth的现在分词形式.
The same gas performs frothing of the molten metal before the latter is driven into the vacuum chamber. 同时，该气体会让熔融金属在进入真空室之前起泡。
The Chinese-built dust removal filtration material is made through hot-roll moulding of polyester fiber and coated with high-polymer frothing. 摘要国产除尘滤材是将聚酯纤维热轧成型，再涂敷高分子发泡制成。
