查询词典 leucite-tephrite

Our survey suggested that :(1)the way in which zirconia is added has significant impact to the property of ceramic powders. The flexural strength of the ceramic powders produced by the mix of ZrO2 and leucite crystal is much lower than that of ceramic powders produced by solid phase reaction.

氧化锆-白榴石基烤瓷粉的研究表明：(1)氧化锆的添加方式对瓷粉的性能影响很大，氧化锆与合成的白榴石晶体混合所得的瓷粉的弯曲强度大大低于一次固相反应合成的氧化锆-白榴石烤瓷粉，其弯曲强度甚至还不如没有添加氧化锆的瓷粉。

Leucite has high thermal expansion coefficient,so the existing of leucites in the Porcelain fused to metal can achieve the compatibility between porcelain and metal.

采用钾长石为主要原料可以合成含白榴石的熔块，白榴石高膨胀系数的特点，可以弥补烤瓷合金与瓷釉之间的膨胀系数差。

The composites were tested by X-Ray Diffraction, Scanning Electron Microscopy, Thermal Expansion Coefficient and flexural strength. In these ways, the synthesization of leucite crystal and the preparation of Zro2-KAlSi2O6 Ceramic powder are systemically investigated.

本研究以钾长石、纳米氧化锆和碳酸钾为原料，采用固相反应合成氧化锆-白榴石基烤瓷粉，借助XRD、SEM、TEC和弯曲强度等分析测试方法，对白榴石晶体的合成及氧化锆-白榴石基烤瓷粉的制备进行了较为系统的研究。

Feldspar ; Porcelain powder ; Dental Restoration ; Leucite

钾长石；金属烤瓷粉；口腔修复体；白榴石

The first type, kamafugite, is plagioclasefree, consisted of Tirich phlogopite, melilite, leucite and nephelite. They have lower contents of SiO2 and Al2O3, but have high TiO2, CaO, MgO contents and K/Na and Mg# ratio whereas the second type, potassic trachybasalt, is abundant in plagioclase and contains no phlogopite, melilite, leucite and nephelite. They have higher SiO2, Al2O3,(Na2O+K2O), and lower TiO2, CaO, MgO, and K/Na and Mg#, in comparision to the first type of rocks.

钾霞橄黄长岩是一种不含斜长石，但普遍含有高钛金云母、黄长石、白榴石、霞石的岩石，全岩化学成分具低SiO2和Al2O3，富TiO2、CaO、MgO和高K/Na、高Mg#值的特征；钾质粗面玄武岩含有大量斜长石但是缺乏高钛金云母、黄长石、白榴石和霞石，全岩化学中SiO2、Al2O3明显高于前者，而TiO2、CaO、MgO、K/Na和Mg#值要比钾霞橄黄长岩低。

The Cenozoic kamafugites in Lixian County of West Qinling are poor in SiO2 and A12O3 but rich in MgO, CaO, TiO2 and K2O+Na2O. The modal mineral assemblage is composed mainly of olivine, clinopyroxene, nepheline/kalsilite, melilite/leucite and Ti-phlogopite.

西秦岭礼县地区新生代钾霞橄黄长岩係具有贫SiO2、Al2O3，富MgO、CaO、TiO2及K2O+Na2O的特徵，矿物组合中除橄欖石、透辉石外，普遍含有霞石／钾霞石、黄长石／白榴石和鈦金云母等矿物。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。