磷灰石

He dissolution mechanism of α-TCP cement may be considered as dissolution and reprecipitation of defective calcium hydroxy-apatite hydrated from α-TCP.

CP骨水泥固化体在生理盐水中，溶解动力学方程为：y=-ln(1-x)=kt〓；溶解活化能为9.87kJ/mol，其机理是α-TCP水化形成的缺钙羟基磷灰石溶解再沉积的过程。

The average contents of phosphrus in alkali feldspars in both comb zone and the first intermediate zone are high, in the range of 0.42-0.22wt%, and gradually increase from 0.21wt% to 0.50wt% as the magma evolves from the third intermediate zone to the core zone. The abnormally low content of phosphrus (＜0.10wt%) in alkali feldspar from the saccharoidal albite zone is considered due to the crystallization of apatites, which gives rise to extreme depletion of phosphrus in residual melt.

阿尔泰3号伟晶岩脉梳状结构带和Ⅰ带的碱性长石具较高P含量(平均值分别为0.42wt％和0.22wt％)，随着岩浆的演化进行，从Ⅲ带到核部带，碱性长石中P含量逐渐增大(平均值由0.21wt％增至0.50wt％)，而Ⅱ带碱性长石中异常低的P含量(平均值为0.08wt％)是该带大量磷灰石矿物饱和结晶，导致残余熔体相中P极度亏损所造成的，而不是晚期出溶的岩浆热液交代形成的。

In this article, HA was treated with silicane coupling agent. The influences of the surface modification on the particle size and the stability of the dispersion system were studied.

PHBV ； HA ；本文采用硅烷偶联剂对羟基磷灰石进行了表面修饰，分析了表面修饰对HA的粒径及分散体系稳定性的影响。

The mechanical strength, solubleness and the capability to induce ossification of the materials could be improved obviously when strontium was added, which were formed of hydroxyapatite and tricalcium phosphate.

试验研究证实锶盐具有抗骨吸收和增加骨形成的作用，锶盐可以抑制破骨细胞的活性，促进成骨细胞的活性，促进骨盐的沉积；其与羟基磷灰石和磷酸三钙等复合后，其机械强度、溶解性及诱导成骨能力等特性明显得到改善；锶盐口服有治疗骨质疏松症的作用。

In order to observe the capacity of composite artificial bone made from collage/Nano tricalcium phosphate conducting subperiosteal bone formation and investigate the possibility applied in reconstruction of astrophy aveolar ridge, the composite artificial bone was implanted into subperiosteum of the cranial bone in rabbits.

将胶原与纳米磷酸三钙复合制成复合人工骨并植入兔颅骨的骨膜下作为实验组，使用显微镜测微尺测量不同时间点新骨自骨表面长入材料内的高度，并和羟基磷灰石组作对照，观察 Co/N- TCP复合人工骨引导成骨能力，探讨其用于萎缩性牙槽嵴重建的可行性。

The original alkalic series of basalic magma evolutes into trachybasalt through crystallization differentiation of olivine and pyroxene, and the trachybasalt is transformed into alkalic rhyolite with remarkable Eu, Sr, Ba, Ti, P nagetive abnormalities through strong crystallization differentiation of plagioclase and also pyroxene Ti Fe oxides and apatite, all together leading to the loss of neutral (SiO 2=57%～63%) andesite and trachyandesite in the volcanic rocks in this area and appearance of bimodal volcanic rock combination feature.

原始碱性系列玄武质岩浆经橄榄石、辉石的结晶分异，向粗面玄武岩演化；粗面玄武岩经斜长石强烈的结晶分离作用，还有辉石、钛铁氧化物和磷灰石的分离结晶作用形成具显著Eu、Sr、Ba、Ti、P负异常的碱性流纹岩，导致本区火山岩缺失中性(SiO2=57%～63%)的安山岩和粗安岩，呈现双峰式火山岩组合的特点。

Objective: To evaluate the biocompatibility and bio-mechanical of HA sintering coated Ti-75 alloy implant. Methods: A transcortical implant model was used.

目的：观察评估羟基磷灰石烧结涂层的钛-75(Ti-75)合金种植体的生物学性能与生物力学特性。

Through the age analysis on apatite and zircon fission track, there have five stages of tectonic movements, respectively occurred in late Trias, from mid-late period in early Cretaceous to late Cretaceous, Eocene, Oligocene and Miocene.

通过对盆地内磷灰石和锆石年龄分析，焉耆盆地存在5期构造运动：晚三叠世、早白垩世中晚期-晚白垩世、始新世、渐新世和中新世。

Traditional hydroxyapatite and tricalcium phosphate ceramics have not the potential of inducing bone regeneration. In order to endow them with this ability, bone tissue engineering has been established in recent years.

但是，传统的羟基磷灰石和磷酸三钙等生物陶瓷不具有诱导骨组织再生的功能，为赋予其诱导骨组织再生的生物功能，发展了骨组织工程。

OBJECTIVE: To test the performance of bone cement prepared with compound power containing α-tricalcium phosphate and hydroxylapatite and hardening liquid containing chitosan and citric acid as well as gelatin.

目的：检测在柠檬酸中添加壳聚糖、明胶配制的固化液与α-磷酸三钙和羟基磷灰石复合的粉剂调和制备骨水泥试样的性能。

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。