磷灰石

A nonmetallic univalent element; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite.

一种非金属单价元素，通常为黄色的刺激性有毒易燃气体，氧化性极强，从萤石、冰晶石或氟磷灰石中回收。

The performances of the porous material and the optimal amount of foamer wereinvestigated.

本研究还采用注塑成型方式制备了多孔纳米羟基磷灰石／聚酰胺6(n-HA／PA6)复合材料，考察了发泡剂的用量及多孔材料性能。

The porous architecture can be adjusted by the combination of processingparameters such as the weight of starting mixture used per mold and the ratio ofcomposite to foamer as well as n-HA content in n-HA/PA66 composite.

孔隙率和孔隙结构受单模材料用量，发泡剂比例和复合材料中纳米羟基磷灰石含量的影响。

The upper layer, with homogeneous composition, is mainly composed of intact phosphatic foraminifer fossils and nannofossils as well as abiotic carbonate fluorapatites, representing the biologic and autogenic origin. However, the lower layer, with visible metasomatic texture and relatively high Si, Al, K and Fe, is notably different from the upper one, and seems to have been formed mainly by replacement of carbonates.

上层磷酸盐由大量形态结构清楚的磷酸质有孔虫和超微化石以及非生物碳氟磷灰石组成，成分均一，杂质少，表现出生物成因和原生白沉积特点；下层磷酸盐变化复杂，具有特征的交代结构，混杂较高的Si、Al、K、Fe成分，显示以磷酸盐交代碳酸盐成因为主。

This suggests that,even under high water fugacity,substantial crystallization of apatite during early stage of magmatic evolution is able to prevent some arc magmatism from evolving into adakitic rocks.

这进一步表明，即使在高水逸度的条件下，磷灰石在岩浆早期的大量结晶可以有效地阻止一些弧岩浆演化成为埃达克质岩石。

Coincident biotite 40Ar/39Ar ages yield in rocks in the south of Yadong and in the high-pressure granulite shows that on the section of Yadong-ZhergerLa, rocks were cooled to 320℃contemporarily.

在亚东县城以南的两处花岗质片麻岩中，锆石U-Pb年龄分别为1149和474 Ma，为原岩和泛非变质事件的年龄，黑云母单次全熔40Ar/39Ar年龄为11.3和11.0 Ma，磷灰石裂变径迹年龄分别为7和8 Ma。

However, the activity of HO-1 was increased after hematin and phenylhydrazine induction, while the activity of HO-2 was fully refractory to these inducers.

采用离子交换层析、羟基磷灰石交换、分子筛层析、酶活性检测、SDS-PAGE和Western印迹技术手段来提取、纯化这些大白鼠不同组织HO的同工酶。

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。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。