a light glass formed on the surface of some lavas; used as an abrasive
双语例句
1. The best way to de-fuzz a sweater: use a pumicestone.
平顺起球的毛衣最好的方法是用浮石。
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2. If you suffer from these problems you can file them down with a pumicestone.
如果你遭受这些问题，你可以用一块磨脚石把它锉去。
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3. The frames and slabs are filled with pumicestone which is enclosed by plywood sheets after pipework has been installed.
在管道系统安装完成后，浮石填充进通过胶合板材封闭的框架和楼板。
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4. According to Gerard Kuiper, of the University of Chicago, the escape of gases from the moon's magma may have given the satellite a light, porous consistency, like that of a pumice stone.
5. Cancellous stone: water stone, flower, pumice, coral rock, etc.
松质石料：吸水石、芦管石、浮石、珊瑚石等。
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6. Aggregate use and considerable resources under the circumstances, the use of fly ash, slag, sand, stone, ceramic, pumice, perlite, etc. (or not added).
7. Aggregate use and considerable resources under the circumstances, the use of fly ash, slag, sand, stone, ceramic, pumice, perlite, etc. (or not added).
