1.
a white or colorless vitreous insoluble solid; various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechartelierite.
一种白色或无色的玻璃质不溶固体，以各种形式广泛存在于地壳中，如石英、方石英、鳞石英等。
2.
Montmorillonite, quartz and cristobalite can be corroded by sodium hydroxide solution, but will introduce new impurity phase similar to zeolite.
氢氧化钠溶蚀法会对蒙脱石、石英和方石英同时产生溶蚀，引入新的物相杂质。
3.
The useful ore mineral is barite and the gangue minerals are mainly calcite, clay mineral and quartz et al.
矿石矿物为重晶石，脉石矿物主要有方解石、粘土矿物和石英等。
4.
The quartz-barite-calcite stage is main matallogenesis.
其中方解石—石英—重晶石阶段为成矿主要阶段。
5.
The prospectors have discovered such minerals as calcite, quartz and asbestos here.
探矿人员在这里发现了方解石、石英、石棉等矿藏。
6.
Studies on the Experiment of Microbiologically-induced Calcite Precipitation in Silica
微生物在石英砂中诱导方解石沉积的实验研究
7.
Park about nine inches clear of the kerb.
停放在离路边石九英寸的地方.
8.
The rule of type designation for quartz crystal units
GB/T6429-1986石英谐振器型号命名方法
9.
Test method for the hydroxyl groups content of silica glass
GB/T12442-1990石英玻璃中羟基含量检验方法
10.
The rule of type designation for quartz crystal oscillators
GB/T12275-1990石英晶体振荡器型号命名方法
11.
Test method for optical grade synthetic quartz crystal
GB/T7896-1987人造光学石英晶体试验方法
12.
The Test method for stability to thermal darkening of silica glass
GB/T4121-1983石英玻璃热变色性试验方法
13.
Test methods for thermal stability of silica glass
GB/T10701-1989石英玻璃热稳定性检验方法
14.
Analytical method of the chemical composition in the quartz glass
GB/T3284-1993石英玻璃化学成分分析方法
15.
Chemical analysis methods for zircon refractories
GB/T14350-1993锆英石耐火材料化学分析方法
16.
On the Elimination of Impurities in Quartz at High Temperature;
石英原料中杂质的高温去除方法研究
17.
Locally dolomite and anhydrite are important as cements, together with minor authigenic quartz.
在局部地方白云石和硬石膏也是重要的胶结物；还有少量自生石英。
18.
The main mineral is askanite with an average content of 72. 85 percent,followed by quartz, christo-balite and little rock salt and hematite.
主要矿物为蒙脱石,平均含量72.85％,其次为石英、方英石及少量石盐、赤铁矿。