石英质

In order to improve the precision, a new system is presented to measure the optical activity based on the theory of polarization interference. The measurement result for a quartz crystal optical activity shows that the relative error is less than one percent and the precision and effeet is improved a lot than the traditional one.

为了提高测量精度，设计了一种利用偏振光干涉法测量物质旋光率的新系统，并对石英晶体旋光性质进行了测定，测量结果的相对误差小于1%，实验证明其测试精度和使用效果都比传统方法有了明显的提高。

The device not only has high mass transfer efficiency and high utility rate of luminous energy that are possessed by floating photocatalytic reaction devices, but also can retain the hollow glass microsphere filled with titanium dioxide in the reaction area through the quartz sand filtering layer, thereby recycling the photo-catalyst.

本装置既具有悬浮式光催化反应装置所具有的高传质效率和光能利用率，又可以通过石英砂滤层，使负载二氧化钛的空心玻璃珠停留在反应区内而不流失，实现了光催化剂的重复利用。

Upstream has formed an annual output of 300,000 tons has a high-quality silicon mines, when the glass holding company Silicon Mine Ichang limited liability company is a large production base of raw materials of silica, there are two domestic beneficiation of silica sand advanced production lines, annual output of fine quartz sand 300000 t / a, is South Africa's largest silica sand base; mid-stream has a 450t / d, 500t / d float glass production lines and 600 / t self-cleaning glass substrate production line of the article, an annual output of float glass production capacity of 10 million weight boxes; downstream has a glass cover, TiO2 thin-film self-cleaning glass, tempered glass, insulating glass, such as a number of glass deep-processing production lines, processing 3 million square meters of glass products.

上游已形成拥有年产30万吨的优质硅矿，控股公司宜昌当玻硅矿有限责任公司是大型硅质原料生产基地，建有2条国内先进的硅砂选矿生产线，年产石英精砂30万t/a，属中南地区最大的硅砂基地；中游拥有450t/d、500t/d浮法玻璃生产线和600/t自洁玻璃基片生产线各一条，年产浮法玻璃1000万重量箱生产能力；下游拥有强化玻璃盖、TiO2薄膜自洁玻璃、钢化玻璃、中空玻璃等多条玻璃深加工生产线，年加工玻璃制品300万平方米。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。