查询词典 fluorapatite

Machinable bioactive glass-ceramics containing mica and fluorapatite were prepared by high-temperature melting. The glass-ceramics were analyzed by means of X-ray diffractometry, scanning electron microscopy with energy dispersive spectrometer and Fourier transform infrared reflection spectrometry. The bending strength, hardness and fracture toughness of the materials were measured.

摘 要：采用高温熔铸法制备可加工生物活性云母/氟磷灰石玻璃陶瓷；用X射线衍射、扫描电镜和傅里叶变换红外光谱分析等手段对材料的相组成和微观形貌进行研究，测定材料的抗弯强度、硬度和断裂韧性等力学性能；采用体外模拟体液浸泡法测试材料的生物活性。

Machinable bioactive glass-ceramics containing mica and fluorapatite were prepared byhigh-temperature melting. The glass-ceramics were analyzed by means of X-ray diffractometry, scanning electron microscopy with energy dispersive spectrometer and Fourier transform infrared reflection spectrometry. The bending strength, hardness and fracture toughness of the materials were measured.

摘 要：采用高温熔铸法制备可加工生物活性云母/氟磷灰石玻璃陶瓷；用X射线衍射、扫描电镜和傅里叶变换红外光谱分析等手段对材料的相组成和微观形貌进行研究，测定材料的抗弯强度、硬度和断裂韧性等力学性能；采用体外模拟体液浸泡法测试材料的生物活性。

SEM studies of all the three types demonstrate that this colloidal mineral is made up primarily of supermicroscopic low-carbonate fluorapatite aggregates, phosphate microframboids, and radiated fibrous apatite.

对不同矿石类型中胶磷矿做扫描电镜研究，得知胶磷矿主要由超微晶低碳氟磷灰石集合体、磷酸盐显微莓群以及纤维放射状磷灰石等构成。

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 apatite with end-member cations, the apatite solid solutions [M-M1 AP] withdivalent cations substitution, the fluorapatite and the chlorapatite with end-memberations, the apatite solid solutions [Xi-X2 AP] with column-ions substitution were synthesizedthrough " solid-phase reaction method" in inert gas.

对不同Ca/P摩尔比HAP来说，在1.2≤R≤2.3范围内，随R值偏离正常配比程度的增大，其比表面积增大、晶粒尺寸ΓA，Γ(221，ΓR减小、晶形指数降低、结晶度减小、晶格缺陷度增大；当R=2.5时，晶粒尺寸和结晶度反而增大，出现反常，但晶格缺陷度却保持有规律增加。

Studies show that the average ratio of w/w(P2O5)(1.62) of phosphates in submarine guyots is the same as that of w/w(P2O5)（1.621）of carbonate-fluorapatite, but is obviously different from that of w/w(P2O5)（1.318）of fluorine_carbonate, suggesting that the phosphates from northwestern Pacific are species of carbonate_fluorapatite.Three types of microneedle-microcolumnar, microgranular and microcryptocrystalline carbonate_fluorapatite with different abundances have been found.

海山磷酸盐的平均化学成分w/w(P2O5)（1.62）与碳氟磷灰石的w/w(P2O5)（1.621）几乎一致，而与氟磷灰石的w/w(P2O5)（1.318）相差甚远，表明海山磷酸盐为碳氟磷灰石，其形态主要有针状_柱状微晶碳氟磷灰石、粒状微晶碳氟磷灰石及显微隐晶质碳氟磷灰石3种类型，它们在分布丰度上存在差异。

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。