1.
With rare exceptions such as a pure quartz sandstone, every rock contains detectable amounts of abundant metals.
除了象纯石英砂岩等少数例外，每种岩石都含有若干可检出的富有金属。
2.
Study on Concentration Experiment of Silica Sand from Hainan Province
海南某石英砂矿的选矿提纯试验研究
3.
Laboratory Study on New Flotation Technology without Fluorite to Purify Quartz Sand Deposit in Gambia
冈比亚石英砂矿无氟浮选提纯新工艺试验
4.
Physical seate: our company's quartz sand is made of natural quartz roes after ceasing, sieving and water scrubbing and takes on multi-prismatic shape and pure white color with no impurity.
物理状态：我公司生产的石英砂，是天然石英矿经破碎、选、洗而成，多棱形色纯白、杂质。
5.
Contrast of Magnetic Susceptibility of Silica Sand and Silica Raw Material and Its Significance
石英砂与石英砂原料磁化率的对比及其意义
6.
Studies on Preparation of High Purity Magnesia from Bischofite in QingHai Salt Lakes;
青海盐湖水氯镁石制备高纯镁砂研究
7.
This is a cliff composed of quartz sandstone that is well bedded.
由石英砂岩构成的悬崖，岩石层理发育。
8.
This sandstone consists of quartz primarily and feldspar secondly.
这种砂岩的成份以石英为主，长石次之。
9.
Research on Surface Grinding of SCFS with Diamond Wheel;
金刚石砂轮平面磨削石英陶瓷的研究
10.
pure silica core single-mode fiber
纯石英纤芯单模光纤
11.
Three kinds of state of arscnopyrite are developed at the deposit, i. e. corse-grained arsenopyritc, veinlet arsenopyrite and arsenopyrite-bearing quartz vein, and fine-grained disseminated arsenopyrite.
毒砂可划分为大颗粒毒砂、细脉状及毒砂石英脉中的毒砂和细粒浸染状毒砂三种性状.
12.
Adsorption of Cr(Ⅵ) from Aqueous Solution Using Iron Oxide Coated Sand
涂铁石英砂吸附水中Cr(Ⅵ)的研究
13.
Surface characteristics of quartz sand coated with iron oxides
氧化铁涂层石英砂滤料表面特征研究
14.
Microwave Synthesis of SiC Powders with Coke and Quartzite
微波加热焦碳与石英砂合成SiC粉体
15.
Determination of Fe,Al,Ca,Ti,B,P in quartz sand by ICP-AES
ICP-AES测定石英砂中的铁、铝、钙、钛、硼、磷
16.
Suqian is ample in mineral resources. Its reserve of quartz sand, pottery clay, blue spar and yellow sand ranks among the top of the provincial-level cities in China.
宿迁矿产资源丰富,石英砂、陶土、蓝晶石、黄砂储量居全国省辖市之首。
17.
The cardium sandstone is lithic, being composed of grains of chert, quartz, quartzite, silicified argillite, and other rock fragments.
卡迪砂岩是岩屑砂岩，由燧石，石英、石英岩、硅化泥板岩和其它岩石碎屑颗粒所组成。
18.
Synthesis of β-SiC Micro-powder with Gangue or Silica and Anthracite;
煤矸石/石英砂与无烟煤合成β-SiC微粉研究