氟磷灰石

Study on the phosphorate minerals assemblage shows that strongly developed anatexis of the area is responsible the occurrence of wagnerite and its coexistence with apatite, and both present as rock-forming minerals. The volatiles F, P and components Ca, Mg determine the formation of wagnerite, while the P-T condition affects the variation of wagnerite polytypes.

通过磷酸盐矿物组合的岩石学研究得知强烈发育的深熔作用导致氟磷镁石与磷灰石共生并以造岩矿物出现，挥发分F、P以及Ca、Mg等成分因素决定氟磷镁石的出现与否、温压条件控制氟磷镁石的多型变化。

Fluorapatite is a crystal that contains fluoride, tooth enamel than in the general composition of hydroxyapatite crystals have a stronger corrosion resistance.

含氟是晶体，其中包含比一般的羟基磷灰石晶体组成的氟化物，牙齿珐琅质具有较强的耐腐蚀性。

The high content of fluorine is closely related to the mixed-layer minerals of illite and smectite, apatite, hornblende, and K-feldspar.

拌煤黏土中高含量的氟主要与伊蒙混层矿物、磷灰石、角闪石和钾长石等密切相关。

The clay used for coal combustions is the main fluorine source of the endemic fluorosis. In addition to occurring in apatite and hornblende, fluorine is closely related to the adsorption of illite and mixed-layer clay minerals of smectite and illite.

氟中毒的氟源主要来自拌煤黏土，氟在拌煤黏土中除了以磷灰石、角闪石形式存在外，与伊蒙混层矿物和伊利石的吸附密切相关。

This paper also shows the distribution of the fluorine in sediments of the area is mainly controlled by the chemical composition of the material from the surrounding islands, and the element seems to be incorporated by the hornblende at the most extent, thus the correlation between the element and the hornblende amount in the sediments can be expressed statistically as following: F=217+lnVh.

研究结果表明，测区沉积物中氟含量分布主要受周围岛屿风化基岩的化学成分制约；沉积物中主要含氟矿物：萤石/磷灰石、黄玉、黑云母等含量极低，氟在沉积物中赋存的矿物相主要与角闪石[AX_2Y_5Z_8O_(22)_2]有关。氟含量与碎屑矿物中角闪石的体积比间的关系式可大致表示为：氟含量=217+361nV_H；间隙水中的低氟主要由测区化学风化不发育及氟的钙盐沉积所致。

Optimal conditions for crystallizing have been investigated on a laboratory scale pellet reactor initially seeded with phosphorite.

在流化床诱导结晶法除氟研究中，确定了以磷灰石为结晶核的氟化钙结晶过程中的最佳工艺参数。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐