石英

A novel combined phase conjugator consisting of a fused silica rod and silica fiber is used in the high repetition laser system to improve the light quality.

提出了一种新型的由熔石英棒和石英光纤组成的复合型相位共轭镜，其可运用于高重复频率激光输入系统中以改善光束质量。

Apart from being a variety within the group, Chalcedony is also a catch all term to describe cryptocrystalline Quartz and includes many gems that have been coveted since antiquity.

除了玉髓属于隐晶石英类的其中一个品种以外，她还是一个可以用来说明隐晶石英特征的一个全全代表，并且玉髓多个宝石级品种从古至今一直被人们追捧。

The gold deposit is closely associated with the feldspathic quartz gray-wacke of the Zhuanqiangwan Formation of the Furongxi Group and the pebble-bearing feldspathic quartz gray-wacke of the Sinian Changtan Formation.

芙蓉溪群砖墙湾组长石石英杂砂岩和震旦系长滩组含砾长石石英杂砂岩均具明显的控金作用。砂岩层往往大面积发生矿化蚀变，矿体严格受砂岩层控制。

So the meta-granitoids can he recognized and separated from the metamorphic sequences. They are grouped as the Meoproterozoic-Neoproterozoic gneissoid granite-monzogranite-granodiorite, with their isotope ages of 953.4 Ma to 1450 Ma, and the Sinian schistostose quartz monzogranite diorite.

主要成岩期及代表性岩类有：晚元古代为片麻状正长花岗岩－二长花岗岩－花岗闪长岩，同位素年龄为953.4~1450Ma；震旦纪为片理化石英二长岩－石英闪长岩，同位素年龄为547Ma。

It showed that tripoli had a smaller grein size and a greater specific surface. The content of SiO2 was greater than 95%.It is a typical a quartz.

研究表明，粉石英颗粒细小，比表面积大，SiO_2含量大于95％，是一种标准的α-石英，其粒度组成呈现规律性的&双峰态&特征。

The ore-forming materials were mainly derived from the volcanic rocks, the spilite providing quite more Cu, and the quartz keratophyre providing quite more Pb, while the spilite, keratophyre, and quartz keratophyre possibly providing quite more Au and Zn.

成矿物质主要来源于火山岩，其中细碧岩可能提供较多的Cu，而石英角斑岩可能提供较多的Pb，Zn的来源则相对较广，细碧岩、角斑岩、石英角斑岩均提供较多的Au。

The XRD and SEM/EDX analyses demonstrated that minerals in Beijing PM10 were clay and quartz, plagioclase, potassium feldspar, albite, calcite, dolomite, hematite, pyrite, magnesite, gypsum, and laumontite, in descending order.

XRD及 FESEM/EDX单颗粒分析表明，北京市PM10中的矿物颗粒以粘土矿物和石英为主，另外还有斜长石、钾长石、钠长石、方解石、白云石、赤铁矿、黄铁矿，菱镁矿、石膏、浊沸石等，矿物颗粒表面的硫化现象常见。2002特大沙尘暴颗粒物中的矿物的含量自大到小分别为粘土矿物、石英、斜长石、方解石、钾长石、赤铁矿、黄铁矿、角闪石和石膏。

Main nonmetal mineral products of Dalitong are as follows: Raw vermiculite (annual export about 10,000 tons), expended vermiculite (annual output 20,000 tons), white mica, mica powder and mica pieces (annual output about 6,000 tons), meroxene and mica pieces (annual output 2,000 tons), bronze mica and mica pieces (annual output 2,000 tons), natural sand (annual output over 50,000 tons), quartz sand and flour (annual output over 20,000 tons), rock slice, taltalit, medical stone, calcined kaolin and so on.

达利通主要非金属矿产品有：蛭石原矿、膨胀蛭石（年产2万吨）、白云母、云母粉、云母碎（干磨和水磨，去掉。年产6千吨）、黑云母、云母碎（年产2000吨）、金云母、云母碎（年产2000吨）、天然彩砂（年产5万吨以上）、石英砂、石英粉（年产2万吨以上）、岩片、电气石、麦饭石、煅烧高岭土等

Based on isotopic ages and the cycle of magamtism, the ages of Yanbian granites can be subdivided into five periods:①late Permian granites (260-245Ma), the typical plutons are Liukesong and Liangbing plutons, and the main rock type include diorite-monzonitic-K syenogranites;②Triassic granites (225-200Ma), the typical plutons are Sandaogou, Chunyang, Qishiergedingzi, Dahuanggou, Naozhi, and Qinglinzi plutons, the main rock type include quartz dioritesgranodiorites-monzonitic-alkali granites;③early Jurassic granites (190-180Ma), which composed of quartz diorites-granodiorites - monzonitic ,and the typical plutons are Shimen, Miantian, Daxinggou and Yushuchuan rock;④Middle-Late Jurassic (170-150Ma), which composed of granodiorites- monzonitic- garnet-bearing muscovite granites, the typical plutons are Huangniling, Weizigou, Loutuoshan and Dongqing rock;⑤early Cretaceous (about 130Ma), the typical pluton is Zhongping pluton, and its rock type is paulite diorite.

另外，根据同位素年龄和岩石组合并考虑到岩浆的旋回性，将延边显生宙花岗岩进一步划分为五个期次：1。晚二叠世(260-245Ma)，代表性岩体为六棵松和亮兵，主体岩性为辉石闪长岩、二长花岗岩和钾长花岗岩；2。三叠世(225-200Ma)，代表性岩体为三道沟、春阳、七十二个顶子、大荒沟、闹枝、青林子，岩石组合为石英闪长岩—花岗闪长岩—二长花岗岩—碱长花岗岩，以花岗闪长岩和二长花岗岩为主；3。早侏罗世(190-180Ma)，石英闪长岩—花岗闪长岩—二长花岗岩组合，主体岩性为花岗闪长岩，代表性岩体有石门、棉田、大兴沟、榆树川等；4。中侏罗世(170-150Ma)，主体岩性为花岗闪长岩和含石榴石花岗岩，代表性岩体有黄泥岭、苇子沟、骆驼山、东清5。

The Weifang Great wild goose Space Golden horse Quartz sand Factory founded in 2001, this company specialized was engaged in the quartz sand serial products development and the production nonmetalliferous ore enterprise.

企业介绍：潍坊市鸿宇金马石英砂厂创建于2001年，本公司专业从事石英砂系列产品开发和生产的非金属矿企业。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。