使结晶

Of all materials available, calcium phosphate cement is an important biomaterial for hard tissue repair because of its chemical and crystallographic similarity to the carbonated apatite in bones and has received considerable attention. CPC consists of a mixture of fine particles of calcium phosphate salts, the CPC powder can be mixed with water to form a thick paste that can conform to osseous defects to form degradable hydroxyapatite, therefore, CPC's moldability, together with its excellent biocompatibility and osteoconductivity, make it a highly desirable material for orthopaedic repair.

磷酸钙骨水泥是一种非陶瓷型羟基磷灰石类材料，生物学特性与骨的化学组成相似，其良好的生物相容性和骨传导性引起人们的广泛重视，同时具有可吸收性，良好的蛋白亲和性，可复合骨形成蛋白而具有骨诱导性，制备简便、固化迅速、易塑形、在结晶过程中不产热等许多明显的优势使其广泛用于骨缺损修复、骨强化和骨替代。

The composi-tion of the seawater has changed rapidly since Phanerozoic, and the prolonged mineralogical changes of marine non-skeletal limestone and potash evaporates occurred in a phase on a 100-200 Ma.

结果表明：显生宙以来海水组分发生变化，经海相非骨骼灰岩和钾盐蒸发岩矿物学研究，发现这两种沉积岩长期以来连续变化，在"文石海"是MgSO4型蒸发盐，在"方解石海"是KCl型蒸发盐，从白垩纪晚期、第三纪早期的底部石盐溴含量及矿物学特征表明，此时处于"方解石海"，古海水组分的特点是造成缺硫酸盐型钾盐矿床形成的物化基础；通过NaCl-KCl-MgCl2-H2O和NaCl-KCl-MgCl2-CaCl2-H2O两个体系相图的分析认为，当时所形成的成钾原始体系母液是高镁、低钾氯化物型的卤水，在母液蒸发过程中，由于原始海侵母液与残余高镁母液的掺杂作用，致使结晶路线直接从氯化钠区到E点母液或光卤石与氯化钠共饱线上，而没有通过氯化钠和氯化钾的共饱线，因而在矿体中氯化钾相很少或几乎不存在，由于外界CaCl2型水体的掺杂，使成钾母液进入光卤石相区，随着蒸发的进行，最终形成溢晶石矿物。

The results show that the perfect strength can be obtained under oxygen partial pressure about 20% O2, overhigh or low oxygen partial pressure is unfavorable for recrystallization of Fe2O3, which causes a decrease of pellet strength. The original hematite will be transformed into magnetite on reduction firstly when carbon-burdened hematite pellet is roasted in oxidizing atmosphere, and then the magnetite will be oxidized to secondary hematite, which is more active than original hematite, therefore, the induration strength of pellet is able to be enhanced.

研究结果表明：内配碳赤铁矿氧化球团在接近空气配比(氧含量约20%，体积分数)的氧化性气氛中焙烧强度最大，氧含量过高或过低都会影响Fe2O3的再结晶，使球团强度降低；在氧化性气氛中焙烧含碳赤铁矿球团时，原生赤铁矿先还原为磁铁矿，磁铁矿再氧化成活性较高的次生赤铁矿，提高了赤铁矿焙烧固结性能和球团强度。

Phenazine with high purity above 99.5% was separated from waste of industrial production of RT base by solvent extraction and recrystallization.

摘 要：利用工业生产RT培司过程中产生的废料，采用溶剂萃取、重结晶等方法将其中的吩嗪分离提取，使其纯度达到99.5%以上。

In addition,p-phenylenediamine could be incorporated into copolymer to make the copolymerhave phenazine or phenazine like cyclic structure,which was proved by thereflectance FTIR spectra of polymer and copolymer.

同时，聚合物的扫描电子显微镜，表明对苯二胺的加入不仅加速了聚合反应，而且由于对苯二胺进入聚合物的骨架引起了聚合物结晶方式的改变使表面形貌有无规则的颗粒状变成纤维状。

Phytin was extracted with diluted hydrochloric acid, after precipitating the effluent and transforming the precipitate with sodium hydroxide, sodium phytate solution was produced.

采用化学沉淀法由菲汀制取植酸和植酸钠。菲汀经酸浸、沉淀、加碱使沉淀转化可制得植酸钠溶液。植酸钠溶液经减压浓缩、乙醇结晶可制得针状的植酸钠晶体，或经离子交换树脂酸化、浓缩可得浓度为70%的植酸

The results show that, with the increase of extrusion ratio, that is, the increase of deformation, the volume fraction of new grains is growing gradually during deformation, and under certain conditions, dynamic recrystallization can be repeated, thus the grain is significantly refined, which effectively improves the mechanical property of the alloy.

结果表明：随挤压比的增加，即变形量的增加，在变形过程中新晶粒所占体积分数越来越大，且在一定条件下动态再结晶可以重复进行，因此使晶粒得到明显细化，有效提高了合金综合性能。

With rich experience and excellent technology, good Qinglian Lake Kaguta pen production of "ancient" brand lake pen, all these years, according to many calligraphers and calligraphy Master, pointing predecessors, according to their pens after the test for their valuable comments and suggest that we seriously explore, reform and innovation, they choose high-quality mountain wool, rabbit hair Hill, Northeast, rock badger hair, squirrel hair, ui hair, Pig Brown, mountain horse hair and nylon, such as imports of raw materials, using the traditional pen Lake pens over a hundred processes and modern technology to combine the perfect crystallization of the "ancient" brand pens Lake truly "sharp, homogeneous, round, Kin," the characteristics of the vast numbers of users over the years has been affirmed and praised.

具有丰富的经验和精湛的技术，善琏古塔湖笔厂生产的"古塔"牌湖笔，这些年来，根据众多书法家和书画大师、前辈们的指点，根据他们试笔以后提出的宝贵意见和建议，我们认真探索，改革创新，故选用优质的山羊毛、山兔毛、东北狼毫、石獾毛、灰鼠毛、牛耳毛、猪棕、山马毛和进口尼龙等原料，采用传统的湖笔制笔百余道工序和现代的技术相结合的完美结晶，使"古塔"牌湖笔真正做到"尖、齐、圆、健"的特点，多年来得到广大用户的肯定和称赞。

A new method of getting ultrafine grain has b eeninvestigated,which is called"Sandglass Extrusion".

沙漏挤压是一种新的晶粒细化方法，通过挤压过程中产生的大塑性变形和动态再结晶而使晶粒得到细化。

The experimental results show that the equal axial ultrafine microstructures can be introduced to the bulk test material during sandglass extrusion .

沙漏挤压是一种新的晶粒细化方法，通过挤压过程中产生的大塑性变形和动态再结晶而使晶粒得到细化。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。