pumice

to clean, polish, or smooth with pumice.

用浮石(把某物)磨光使之变得干净、光亮或柔滑

Fragrant Patchouli, Orange Oil and natural Pumice work together to leave skin awakened, invigorated and sublimely soft with a natural glow.

含天然磨砂华、香橙及广藿香油，温和地去除老化角质，令肌肤细致光滑。

In order to determine the time sequence of recent eruption in Tianchi volcano, the TL thermal-stability has been investigated for pumice and sanidine phenocryst within the volcanics.

为厘定天池近代喷发的时序,对碱流中的浮和透长石斑晶进行了热释光(TL)信号热稳定性研究。

The thrusters on the Hornets' wingtips rotated to keep the air-craft steady as the marines unclipped from their hard-points, leapt onto the frost-covered pumice and began to run.

机急速地从丘后坡上降落到工业区外围陡峭且突出的停机区域，翼尖的推进器不断转动以保持机身稳定，而此时陆队员们纷纷离开机上搭载点、跳到霜冻的碎石中并开始跑动。