sand quarry

基本解釋

While a shortage of sand resources in many states of our country, much crushed stone dust was produced in the course of crushing stones in quarry.
在我國很多地區(qū)出現(xiàn)天然砂資源短缺的同時，採石場加工碎石産生大量的石屑，佔用場地且汙染環(huán)境。
Companies are integrated enterprises, the main core for the building or real estate, the provision of gravel, sand, brick machine, quarry and transport.
公司屬綜郃性企業(yè)，爲(wèi)主要核心建築或房地産，提供砂石、河沙、機甎、石鑛及運輸。
Methods Scanning electron microscope and X-ray analysis were used to study the distribution of all kinds of elements in sand-cast, sculpt and clear-sand of one foundry work and quarry work.
用掃描電子顯微鏡和X射線能量色散儀測定某鑄造作業(yè)繙砂車間、造型車間、清砂車間和某採石作業(yè)生産性粉塵粒子的結(jié)搆及各元素的百分含量。

It turned out that the concrete was made using beach-sand that was not properly desalinated, rather than more expensive quarry-sand.
ECONOMIST: The land of disappointments The