pumice

noun

1. 浮岩，浮石（一种火山玻璃，其粉末用于清洁抛光以及使皮肤光滑）
   a type of grey stone that comes from volcanoes and is very light in weight. It is used in powder form for cleaning and polishing, and in pieces for rubbing on the skin to make it softer.

1. 浮石，浮岩，轻石（一种火山石，用于去污以及柔肤等）
   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. "Lots of times, volcanic pumice originates as a flow [ of loose, gravel-like particles], and because of the heat and the weight, it becomes welded into solid rock," Bonis said.
   博尼斯说：许多情况下，火山浮石大多是由（像沙砾一样松散的）流动性粒子形成的，它们在高温和重压下结合在一起，变成固体岩石。
2. But the cavity formed in the first place because the city and its underground infrastructure were built in a region where the first few hundred meters of ground are mostly made up of a material called pumice fill, deposited during past volcanic eruptions.
   不过地洞形成的首要原因是与该城和它的地下排水设施所在的位置有关，其地表以下深达数百米的地层主要是由之前火山爆发产生的浮石填充物构成。
3. The pumice stone resembles a bar of soap.
   这种浮石就像一块肥皂。
4. The Research on TiO_2/ Pumice Composites Degradation of Wastewater from Printing and Dyeing
   TiO2/浮石复合材料降解印染废水的研究
5. The eruptive pattern of the Yuanchi phase is from Plinian column ( the Yuanchi pumice and ash fall deposits)→ pyroclastic flow ( the Bingchang pyroclastic flow deposits).
   园池期火山喷发模式为：普林尼式喷发柱-火山碎屑流。
6. Line the bottom inch or two with small rocks or pumice to ensure good drainage.
   用小石头或浮石在花盆底部划上一两英寸长的口子确保正常排水。
7. Experiment on frost resistance durability of air-entrained pumice lightweight aggregate concrete
   引气浮石轻骨料混凝土抗冻耐久性的试验研究
8. After soaking the wart in water and gently scrubbing it with pumice stone, the procedure was repeated for up to two months, or until the wart disappeared.
   在水中浸泡疣后，用浮石轻轻擦拭其表面，这样坚持2个月，或直到疣消失。
9. Experiment Study of Mechanical Properties of Natual Pumice Powder Cement-Soil
   天然浮石粉水泥土力学性质的试验研究
10. Pumice medical causes of the different trace elements in the comprehensive evaluation
    不同成因药用浮石中微量元素的综合评价
11. The pumice comes from Italy; and the pigment which gives "the plug" its color is cadmium sulfide.
    浮石产自意大利，给“塞子”上色的颜料则是硫化铬。
12. This paper discusses the performance and application of natural abrasive such as diamond, corundum, garnet, quartz, flint, pumice, diatomite, hematite and perlite.
    本文介绍了天然金刚石、天然刚玉、石榴石、石英、燧石、浮岩、硅藻土、赤铁矿、珍珠岩等天然磨料的性能特点和其应用。
13. It is essentially composed of perlite rock which is heated to form a light, fluffy material similar to pumice. she said softly. She made an apparent effort to stop giggling, and her dark eyes gleamed seductively.
    它基本上是由珠光岩构成的。当珠光岩受热时，形成轻的，松散的类似浮石一样的物质。刘玉英笑定了轻声说，她那乌亮的眼珠满是诱惑的闪光。
14. Mounds of pumice and volcanic ash mark its center, where the volcano remains.
    浮石和火山灰的土墩标志着它的中心，是火山的遗迹。
15. TiO_2 pumice mineralization and disinfection of treated wastewater from sewage treatment plants
    负载TiO2浮石对污水处理厂二沉池出水的矿化与灭菌研究
16. Pumice is produced in volcanic eruptions.
    轻石是在火山爆发中产生的。
17. Some rocks, like gray volcanic pumice, are laced with air pockets created when gases expanded inside the rock while it was still molten.
    有些岩石（像灰色的火山浮石）会布满「气窝」，这是岩石还在熔融态时，内部气体膨胀而成。
18. If eugenol containing temporary cements were used, use pumice to thoroughly remove all traces of cement.
    如果使用的是含丁香酚的暂时性粘结材料，用浮石粉彻底的清除所有的粘结材料。
19. The pumice is made transparent by wetting it with a few drops of alcohol.
    用几滴酒精浸润后，浮石粉变得澄清透明。
20. Photodegradation of dimethyl phthalate in water using TiO_2/ pumice
    TiO2/浮石光催化降解水中邻苯二甲酸二甲酯
21. Beside a pumice isle in Baiae's bay.
    都酣睡在贝伊湾一座浮石岛外。
22. So when the volcano exploded on28 July last year ( 2008), showering fist-sized pumice fragments over the inhabited areas, the government ordered an evacuation of people closest to the volcano.
    因此，当这座火山在去年（2008年）7月28日爆发、向有人居住的地区洒下了拳头大小的碎石的时候，政府命令最靠近火山的居民疏散。
23. The photocatalytic degradation of active bright red X-3B in pilot scale has been investigated by using TiO2/ pumice.
    采用TiO2/浮石悬浮态光催化剂，对活性艳红X-3B模拟废水进行了光催化降解的中试研究。
24. Petrochemistry analysis of pumice component indicates that the magma can be assigned to trachytic magma.
    火山碎屑堆积物中的浮岩岩石化学分析结果表明岩浆成分为粗面质。
25. The results indicate that the shape and aperture distributing variability of processed pumice granule.
    试验研究结果表明，破碎浮石的颗粒形状和孔隙分布变异性较大。
26. Adding air-entrained agent can enhance the heat preservation performance of pumice concrete and improve its durability.
    利用掺引气剂等方法可以进一步提高浮石混凝土及其制品的保温性能，并能适当改善其耐久性。
27. Using fly ash and volcanic pumice modify phosphogypsum, and eventually making gypsum block with other materials.
    综合利用粉煤灰、火山浮石改性磷石膏，并最终与其他物料制得石膏砌块，不仅减少了磷石膏对环境的污染，同时也更好的将各种工业副产物变废为宝，进行资源化再利用。
28. The inclusions hosted in the phenocrysts of basalt and pumice in the Okinawa Trough was systematically studied in this thesis for the first time.
    本文首次对冲绳海槽的浮岩和玄武岩中矿物的包裹体进行了系统的分析研究。

noun

1. a light glass formed on the surface of some lavas

   Synonym:    pumice stone

verb

1. rub with pumice, in order to clean or to smoothen