pumice
n. 浮巖,浮石,輕石(輕而多孔,可以去除面板汙垢或使面板光滑,其粉劑可作清潔劑或拋光劑)
Pumice is a kind of grey stone from a volcano and is very light in weight. It can be rubbed over surfaces, especially your skin, that you want to clean or make smoother.
1. a light glass formed on the surface of some lavas; used as an abrasive
The results indicate that the shape and aperture distributing variability of processed pumice granule.
試驗研究結果表明,破碎浮石的顆粒形狀和孔隙分佈變異性較大.
Our company supplies various types of brush, foot file, pumice.
我們公司供應各類刷子, 足檔案, 浮石.
Mounds of pumice and volcanic ash mark its center, where the volcano remains.
浮石和火山灰的土墩標誌著它的中心, 是火山的遺蹟.
Beside pumice isle in Baiaes bay.
睡在拜伊海灣的一個石島的旁邊.
The pumice with the light and dark bands is the important evidence.
白色與黑褐色相混雜的浮巖是岩漿發生混合的重要證據.