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pumice 音标拼音: [p'ʌməs]

n. 轻石,浮石
vt. 用浮石磨光

轻石,浮石用浮石磨光

WordNet (r) 3.0 (2006) (WordNet)

pumice
n 1: a light glass formed on the surface of some lavas; used as
an abrasive [synonym: {pumice}, {pumice stone}]
v 1: rub with pumice, in order to clean or to smoothen

The Collaborative International Dictionary of English v.0.48 (gcide)

Pumice \Pum"ice\, n. [L. pumex, pumicis, prob. akin to spuma
foam: cf. AS. pumic-st[=a]n. Cf. {Pounce} a powder, {Spume}.]
(Min.)
A very light porous volcanic scoria, usually of a gray color,
the pores of which are capillary and parallel, giving it a
fibrous structure. It is supposed to be produced by the
disengagement of watery vapor without liquid or plastic lava.
It is much used, esp. in the form of powder, for smoothing
and polishing. Called also {pumice stone}.
[1913 Webster]

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英文字典中文字典相关资料:

PUMICE AND PUMICITE - USGS Publications Warehouse
Pumice and pumicite were mined in California, Idaho, Kansas, New Mexico, and Oregon The porous, lightweight properties of pumice are well suited for its main uses
Pumice mining and environmental - New Mexico Bureau of . . .
Introduction Pumice is a light-colored, light-weight igneous rock with cel-lular structure and is formed by a processof explosive volcanism It commonly has a rhyolitic (siliceous)composition but may have
Pumice-AggregateProperties
Pumice concrete is composed of Portland cement, pumice rock, pumice sand, and water Compared to regular concrete, pumice concrete o ers roughly a one-third reduction in weight and four times the R-Value
DOGAMI Short Paper 6, Pumice and pumicite
Since samples of pumice or pumicite from different de posits are rarely identical in physical properties, each deposit must be ful ly investigated, and its product examined for texture and composition when development is being considered
Navajo Pumice-FFF Material Safety Data Sheet
Pumice is an odorless white or grayish-white material that ranges from pebble to a granular powder Contact can cause irritation to eyes, skin, respiratory system, and gastrointestinal tract
PUMICE AND PUMICITE - USGS Publications Warehouse
Prefabricated lightweight concrete walls, which may contain pumice as lightweight aggregate, are often produced and shipped to construction locations Because of their cementitious properties, light weight, and strength, pumice and pumicite perform well in European-style construction
Mix Designs for Pumice Concrete
Pumice concrete is composed of Portland cement, pumice rock, pumice sand, pozzolan, and water Compared to regular concrete, pumice concrete o ers roughly a one-third reduction in weight and four times the R-Value

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