变质

The metamorphism of the Xingdong Group may also have relation to the Early Caledonian tectonothermal events.

兴东群变质作用可能也与早古生代构造-热事件有关。

Although there is a little carbonite caused by some magmatic dikes in the CarboniferousPermiam coal, most Carboniferous-Permian coal has no great differences in vitrinite reflectance, crystalline indices, bulk specific gravity, hardness, and the content of velotile matter from the Jurassic coal, and both are super-anthracite.

区内石炭—二叠系煤与侏罗系煤除了前者含有一些由侵入体造成的天然焦或半焦外，二者均为超无烟煤，在镜质体反射率、煤晶核结构、显微硬度、挥发份和容重等方面上均没有明显的差异，说明区域变质是在煤系地层沉积之后发生的。

Hariga corrected Goswami and Chaudhuri's inventory replenishment model for a deteriorating item with linearly time varying demand,finite shortage cost and equal replenishment intervals.In this paper,a new EOQ for the proposed problem is developed by considering the replenishment time as the decision variable.

Hariga修正了Goswami和Chaudhuri的带有线性时变需求，有限短缺费用和等补充周期的变质物品的库存补充模型，本文通过将补充时刻作为决策变量，建立了上述问题的一个新的EOQ模型。

New data of structural styles and geochronometry in the Dulong-Song Chay metamorphic dome indicate at least two epoches of major extensional tectonics: the D, deformation of the rising and exhumation of the dome occurred at 237-228 Ma; and the D2 deformation overprinted and re-deformed on the dome at 86-78 Ma. Of them, the D, deformation shows a consistent forming time, extensional direction and tectonic regime amongst the Dulong-Song Chay dome, South China block and the north margin of the South China Sea basin.

对位于华南地块西南缘的都龙－Song Chay变质穹隆体的研究表明，在中生代至新生代时期，至少经历了2期重要的伸展构造：D1期(237~228 Ma)穹隆的隆升与表露阶段，代表了印支期造山作用前的伸展构造；D2期(86~78 Ma)叠加和改造阶段，并有可能始于176~146 Ma，致使穹隆进一步隆升和表露。D2期构造在发育时间、伸展方向及变形方式等上既与华南地块同时期区域伸展构造特征相一致，也与南海盆地北缘早期扩张特征相一致。

It is proved that the method of selection modificators by chemical bond parameter is suitable to the study of Cr cast iron.

证明了用键参数函数选择变质剂的方法也适用于中铬铸铁的研究。

Confirmation of high-pressure pelitic rocks in the north. The mineral assemblage of the early stage is gamet-Mg-rich chloritoid +phegite +quartz ±kyanite ±aragonite or gamet+Mg-rich chloritoid+phengite+paragonite+quartz, P-T conditions are 550±30℃ and 1.4～2.0GPa; the mineral assemblage of the late stage is muscovite +chlorite+quartz±albite, which undergone retrograde metamorphism of greenschist facies, P-T conditions are ＜550℃ and ＜0.6GPa.

确定北部高压变泥质岩石，早期矿物组合为石榴子石+富镁硬绿泥石+多硅白云母+石英±蓝晶石±文石或石榴子石+富镁硬绿泥石+多硅白云母+钠云母+石英，对应的温压条件为550±30℃和1.4～2.0GPa；晚期矿物组合为白云母+绿泥石+石英±钠长石，经受了绿片岩相的退变质作用，其温度小于550℃，压力低于0.6GPa。

The ordinary chondrite Semarkona is the most unequilibrium LL3.0 type meteorite, which might be only weakly effected by later thermal metamorphism. Thus, the age of Semarkona is significantly important for the studying of the formation and evaluation of meteorite.

普通球粒陨石Semarkona是最小平衡的LL3.0型陨石，受后期热变质的影响很小，因此其年龄研究对反演陨石起源有重要意义。

The melting speed, overheat temperature, pouring temperature and modification in production of high chrome cast iron were studied.

对高铬铸铁的熔炼速度、过热温度、浇注温度及变质处理进行了研究。

RE modified multicomponent microalloy low chrome cast iron was subcritically treated to expect its hardmess and toughness to be an optimal match.

摘 要：对经稀土复合变质的多元合金化低铬铸铁进行亚温处理，以求其硬度与韧性的最佳匹配。

At first it was thought to be a meteor impact crater due to its circularity but this has since been disproven due to the lack of shock-altered rock in its vicinity.

首先他被认为是一个陨石撞击而产生的陨石坑，因为它呈现的是一个圆的形状；但是这个说法已经被推翻，因为它的坑内附近缺乏陨石撞击会产生的变质岩石(shock-altered rock)。

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。