变质

Research Center of Continental dynamics, Institute of Geology, Chinese Academy of Geological Sciences dedicates to Tibetan Plateau research including structure and high-pressure transmutative zone of Tibetan Plateau, earthquake of positive fault, high-pressure transmutative zone of Aerjin region, uplifting mechanism of Tibetan Plateau, deep structure of Tibetan Plateau, etc.

中国地质科学院地质所大陆动力学研究中心从事有关青藏高原的研究，包括青藏高原构造和超高压变质带研究、正断层地震活动、阿尔金超高压变质带、青藏高原形成机制、青藏高原深部结构等。

Mg2 Si phase nucleated on the surface of the eutectic Si flakes in the unfully modified alloys, growing as net or skeleton shape, however, very few and fine Mg2 Si particles were isolated at the boundaries of eutectic cells in the fully modified alloys.

结果表明：在未完全变质合金中Mg2Si相以网状或骨骼状形式存在，与共晶硅片之间存在附着生长关系；而在完全变质合金中，Mg2Si相以细小的颗粒相形式孤立地存在于共晶团边界上，数量极少。

The metamorphic peridotites display SiO2 (39.08%~40.45%),TiO2 (0.02%~0.03%), Mg′(87.10~90.33). The metamorphic gabbros show geochemical characteristics of enriched in LILE, and depleted in HFSE. Furthermore, there are some high-Mg diorites exposed. In summary, the Daomaoqi ophiolitic mélange formed in a supra-subduction zone.

其中，变质橄榄岩类SiO2含量为39.08%~40.45%，TiO2含量为0.02%~0.03%，Mg′为87.10~90.33，；变质辉长岩表现为大离子亲石元素K、Rb、Sr、Ba明显富集，高场强元素Nb、Ta、Zr相对亏损，以及高镁闪长岩的出露都与SSZ型蛇绿岩特点相符。

The complex, characterized by well developed khondalite series, is seriously metamorphosed and deformed with complicated structures.

这些高级变质杂岩经历了十分复杂的变形变质作用改造，构造特征十分复杂。

The microstructure observation and theoretical calculation show that the primary Si nucleates on the SiC_w surface.

利用纯铝和单晶硅配制Al-18Si合金，采用Al-10Sr合金作为变质剂进行变质处理。

In addition,"water" concentrations of inclusions rutiles are higher than intergranular ones, and the rutiles from fresh eclogites hold more "water" than those from retrograded eclogites, implying that the retrograded fluid might not be derived mainly from release of structural hydroxyl during exhumation.

不同赋存状态金红石结构水含量的对比研究显示，粒间颗粒高于包裹体者，退变质榴辉岩略高于新鲜榴辉岩者，表明退变质流体可能并不主要来源于结构水的减压释放。

Five typical coals of low-to-medium rank (Huolinhe brown coal, Majiata non-caking coal, Datong weakly caking coal, Huozhou gas coal, Lingshi fat coal) and their macerals are prepared. The molecular structure and the oxygen functional groups of the selected coals and their macerals are studied by means of the conventional coal properties analysis, chemical analysis and the advanced instrumental methods such as FTIR,XRIK 13C-NMR.N XPS. The molecular structure characteristics, regularities and the results are discussed. Additionally, the total oxygen content and distribution characteristics of different oxygen functional groups in the raw coals and their macerals are studied.

本文中选取了中低变质程度煤中的五种典型煤种——霍林河褐煤、马家塔不粘煤、大同弱粘煤、霍州气煤、灵石肥煤以及它们的不同显微组分作为研究对象，采用了常规的煤质分析、化学分析法以及先进的仪器分析法如傅立叶变换红外光谱、X射线衍射、高分辨固体~(13)C核磁共振谱~(13C-NMR及X光电子能谱等方法，全面地研究分析了所选煤样的惰质组、镜质组的分子结构及煤中氧的赋存形态，得到所选煤样惰质组分的分子结构特征及结构参数，分析比较了惰质组与镜质组在分子结构上的差异性，并讨论了惰质组分的分子结构特征及结构参数随煤变质程度的变化规律；同时，通过研究得到了所选原煤样及其显微组分中总氧含量及各种不同类型含氧官能团的含量分布特征。

Characterized by degeneration, as of tissue, a cell, or an organ.

变性的，变质的组织、细胞或器官等变质的

Medicine Characterized by degeneration, as of tissue, a cell, or an organ.

变性的，变质的：组织、细胞或器官等变质的

In as-cast microstructures, SG modification can refine austenites and inhibit their orientational arrangement, reduce and refine the intercrystalline carbides; in heat-treatment process, SG modification can either shorten the holding time or lower the holding temperature.

SG 变质处理能有效地抑制铸态组织中柱状晶的生长，细化奥氏体组织并降低其方向性，减少晶间碳化物数量并使之细化；对热处理组织，SG 变质处理可以加速碳化物溶解，缩短水韧处理的保温时间或降低水韧处理的温度。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。