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During the evolution of these granitoids which resulted from rejuvenation and anatexis of the old basement (1200-2000Ma), the main ways for REE differentiations were:(1) partial melting;(2) fractional crystalization;(3) thermogravitational diffusion;(4) differentiations of metamorphism and migmatism, and (5) hydrothermalism.

在花岗岩的形成和演化过程中,有五种最主要的方式造成REE的分馏作用:(1)部分熔融作用;(2)分离结晶作用;(3)热重力扩散作用;(4)变质-混合岩化作用和(5)热液流体作用。

But in the process of ion exchange, xylose molecular is easily converted into arabinose because of catalytic isomerization, which results in the decrease of its purity and difficulty of crystal.

木糖是一种在化工、食品等领域有着广泛用途的五碳糖,工业生产是用稀强酸将玉米芯中含有的大量多缩戊糖分解为单个的木糖分子,然后通过离子交换除盐、脱色,精制提取,但在强碱离子交换柱中,木糖分子容易被部分催化异构转化为阿拉伯糖,使得木糖纯度下降,结晶困难。

The knowledge about crystal, distillation, brewage, dye and so on existed in the Vinayapitaka separately.

在化学方面,佛藏文献中的化学内容极为零散,律藏部分有与结晶、蒸馏酿造、染料等方面有关的内容。

Items of the creed, now rapidly crystallizing in Rome and Asia Minor, are conveyed partly in hymnal fragments which like those in the Apocalypse of John, sprang from the cultus of the churches.

" ( 8 )"项目的信条,现在迅速结晶在罗马和小亚细亚,转达了部分在hymnal碎片一样,那些在启示约翰,兴起从cultus的教会。

Ratio of the external leaf surface to its volume was smaller in psammophytes than in mesophytes.

轴器官中普遍具有发达的机械组织,一些植物形成异常结构;根的周皮发达;茎中基本组织/半径比率较大;部分植物形成同化枝,有的茎、叶中存在粘液细胞或结晶。

The interatomic potential for Al-Mg alloys is different from the others used in the paper. Although it is the EAM type formalism of many-body potential, the functions of this potential are not analytical forms. The functions are described by a numerical set of points, whose values are the parameters to be optimized.

非晶态Ni〓Al加热至晶态结构需要比结晶更慢的加热速率,当加热速率较大时,得到了bcc型结构占有较大比例的结构,这可能是Ni〓Al的一种亚稳结构;当加热速率较小时,可以获得部分有序L1〓结构晶体,不过晶体中仍有少量hcp型结构存在。

The biotite granites were not directly derived from depleted mantle, but were probably the products of partial melting and crystallization differentiation of deep-buried young crustal materials derived from the mantle.

这些黑云母花岗岩不是直接来源于亏损地幔,而更可能是源自地幔且被深埋的年轻地壳物质部分熔融和结晶分异作用的产物。

This was attributed to the formation of strong hydrogen bond between PVA and PAMPS. The crystallinity properties of s-IPN hydrogels were investigated by X-ray diffraction spectrography.

X射线衍射分析发现,当PVA用量较高时,由于部分的PVA结晶,使得凝胶的半互穿网络结构不均匀。

Due to their applications in magnetic, optical, electronic and catalyst, polynuclear lanthanide clusters are of importance. In this part, a series of nanowheel-shaped nonanuclear lanthanide clusters,〓〓(Ln=Sm~Tm; BA=benzoylacetone), were prepared and characterized. Each complex can exist in three phases, i. e., cubic, tetragonal and triclinic.

本论文第二部分在醇溶液中以三乙胺调变溶液pH,利用β-二酮配位方式的灵活性成功地构筑了一系列结构稳定、纳米尺度轮状的九核稀土配合物〓〓(Ln=Sm~Tm;BA=苯甲酰丙酮),并在不同溶剂中重结晶分别得到了三斜、四方以及立方三种晶型的晶体。

While for PE samples, some grafted PEs have Regime Ⅰ-Ⅱ transition, and 〓of Regime Ⅰ is increasing with grafting degree, further increasing in ionomers,although some samples have smaller 〓 than pure PEs.

在PP体系中,结晶处于范围Ⅲ,〓变化不大,接枝和离子化后略有增加,而PE体系中部分接枝物和离聚物出现范围Ⅰ/Ⅱ转变,〓随接枝率提高而增大,离聚物的更大,但有些样品的〓值低于纯PE。

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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。

In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).

在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。