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Zircon LA-ICP-MS U-Pb dating gave ages of 301±1 Ma and 298±2 Ma for the dioritic enclaves and their host granite, respectively, indicating their Early Permian emplacement.

石LA-ICP-MS U-Pb年龄显示闪长质包体与寄主花岗岩在形成时间上非常接近(分别为301±1Ma和298±2 Ma),表明两者均形成于早二叠世。

Zircons from tonalitic and quartz dioritic orthogneisses in the Nyainqêntanglha Mountains, Tibet, were dated by ion microprobe and their origin was studied.

采用高精度离子探针测年方法对西藏念青唐古拉山英云闪长质和石英闪长质正片麻岩中石的成因和形成时代进行了研究。

Crystalline layered sodium disilicate was prepared with wastes of zirconium oxychloride.

以氯氧化生产中排放的废弃物碱性废水和酸性硅渣为主要原料制备了层状硅酸钠。

Process technology for manufacture of δ-layered crystalline sodium disilicate using dilute alkali liquor and acidic silica residue ,which are waste effluents from zirconium oxychloride production,with supplement of a small amount of quartz sand was studied.

利用氯氧化生产过程中排放的稀碱液、酸性硅渣辅加少量石英砂,研究了δ-层状结晶二硅酸钠的制备工艺,得到较佳合成工艺条件为:反应液配比M=n(S iO2)/n(Na2O)=2。

The synthesis methods of ethyl lactate catalyzed by P-toluene sulfonic acid, cationic exchange resin, ferric chloride hexahydrate, stannous chloride, Aluminium chloride, modified zirconium oxid, ferric-potassium vitriol, ammonium ferric sulfate dodecahydrate, rave earth sulfate, sodium bisulfate monohydrate, complex solid superacid, heteropoly acid, molecular sieve, ionic liquid and lipase etal.

评述了对甲苯磺酸,阳离子交换树脂,六水三氧化铁,氯化亚锡,三氯化铭,改性氧化,铁钾矾,十二水合硫酸铁铵,稀土硫酸盐,一水硫酸氢钠,复合固体超强酸,杂多酸,分子筛,离子液体和脂肪酶等催化剂催化合成乳酸乙酯的合成方法。

Inherited zircon ; North China block ; Yangtze block ; Qinling-Dabie erogenic belt ; Archean magmatic event

继承性石;华北陆块;扬子陆块;秦岭-大别造山带;岩浆事件

New reliable UPb age dates of the extensive Cretaceous igneous rocks in the eastern Himalayas suggest that these rocks were emplaced at about 132 Ma, and may represent the erosional and/or deformational remnants of the newly identified ComeiBunbury large igneous province.

新的可靠的石UPb年龄指示喜马拉雅带东部措美地区大面积出露的白垩纪火成岩侵位于132 Ma左右,代表了新近在藏南和澳大利亚南西部识别出的经历了强烈变形和深位侵蚀的ComeiBunbury大火成岩省的残余。

Then,the research progress of high SiC paniculate volume content aluminum matrix composites and aluminum matrix composites reinforced with eucryptite ,with zirconium tungstate and with quasicrystalline particles are reviewed respectively.

综述了低热膨胀铝基复合材料的研究现状,对高体积分数 SiC 颗粒增强铝基复合材料、锂霞石颗粒增强铝基复合材料、钨酸颗粒增强铝基复合材料和准晶颗粒增强铝基复合材料的研究状况进行了详细的阐述。

The main products are inorganic fluoride, with the integrated capacity of 150 thousand tons per year, our main products are: synthetic cryolite, aluminium fluoride, sodium fluoride, silica white, hydrofluoride, potassium fluoroborate, potassium fluotitanate, potassium aluminium fluoride, magnesium fluoride, barium fluoride, lithium fluoride ,potassium fluoride, magnesium fluorosilicate, potassium fluorosilicate, potassium fluorosilicate etc.

多氟多公司生产区多氟多化工股份有限公司,公司注册资本8000万元,为河南省高新技术企业,是中国最大的无机氟化盐生产基地之一。综合产能15万吨/年,主要产品有冰晶石、氟化铝氟化钠、白炭黑、氢氟酸、氟硼酸钾、氟钛酸钾、氟铝酸钾、氟化镁、氟化钡、氟酸钾、氟化氢铵、氟化铵、氟化钾、氟化锂、氟硅酸钠、氟硅酸钾、氟硅酸镁等。

Headquartered in Taiwan and with two manufacturing facilities, CERADEX is one of the few manufacturers of Oxygen Sensor's core technology in the world. Starting with the research to formulize the YSZ powder, our Zirconia body is developed in house.

总部设在台湾的星陶科技股份有限公司在台湾及大陆均有生产工厂,并且星陶科技是世界上少数氧传感器核心技术的制造商之一,有从研发到生产的整套设备支持,使得我们的含氧化的产品成为了业界内的核心。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。