锆

Objective:To evaluate the cytotoxicity of twice sintered machinable nano-meter zirconia ceramic for dental use.

目的：对二步烧结牙科可切削牙科纳米氧化锆陶瓷细胞毒性进行初步评价。

The main products are: high alumina series, siliceous series, clayey series, corundum series, magnesian series, carbon refractories containing zirconia refractories, insulating refractories, and all kinds of unshaped refractory.

主要产品有：高铝质系列、硅质系列、粘土质系列、刚玉质系列、镁质系列、含碳耐火材料、含锆耐火材料、隔热耐火材料、及各种不定型耐火材料。

The magnetic single-domain in the device can be transformated and controlled under an electric field due to the converse magnetoelectric effect.

藉由反式磁电效应，在该镍-锆钛酸铅的薄膜式磁电装置中的单一磁区可以被此外加电场良好地控制其磁区式样的变形过程。

The experimental results indicate that on the condition of Ni/C ,Zr added,the clad layers are metallurgically bonded to the substrate with fine shape and free of pores and cracks.

在楔横轧模具钢55Mn表面采用同轴送粉CO2激光熔覆WE—TiCp／镍基合金复合粉末，在增碳、锆条件下可获得成形好、无裂纹、与基体冶金结合的熔覆层。

Secondly, the silver based catalysts modified by phosphorus, zirconium, zinc, potassium and so on using molecular sieve as carrier, which were produced by ion-exchange method, had also good catalytic performance for 1,2-propane glycol oxidation to methylglyoxal. The conversion of 1,2-propane glycol and the selectivity of methylglyoxal were both high, and the impurity such as formaldehyde and acetaldehyde in the product is little. At the condition of the temperature 300 ℃, the molar ratio of oxygen to 1,2-propane glycol 1.7:1, the space velocity 6000h~(-1), and the concentration of 1,2-propane glycol 70wt%, the conversion of 1,2-propane glycol is 90% and the selectivity of methylglyoxal is 45% on the Ag-P catalyst.

其次对采用离子交换法制备的负载在分子筛上的银系催化剂进行了研究，发现此催化剂在助催化剂磷、锆、锌、钾等的作用下对丙二醇的低温氧化脱氢具有很高的活性，可以得到较好的丙酮醛的收率，并且产物中的甲醛、乙醛副产物的量比较低；经过对Ag-P催化剂上反应条件的考察，发现当温度为300℃、氧醇比1.7：1、空速6000h~(-1)、丙二醇浓度为70wt%时，丙二醇的转化率为90%，丙酮醛的选择性为45%。

According the demand of the national"908"special project, the distribution of the detrital minerals and the characteristics of genetic mineralogy of the surficial sea-floor sediments offshore Hainan islands(CJ19 subzone) were studied by means of lens stereoscope, micropolariscope, SEM, EMPA and LA-ICPMS.

依托国家&908&专项项目，借助立体及偏光光学显微镜、扫描电镜、电子探针微分析和激光剥蚀等离子质谱等先进技术手段和方法，对环海南岛海域(CJ19区块)海底表层沉积物中碎屑矿物的分布和锆石、石榴石的成因矿物学进行了研究。

When you are looking at diamond alternative engagement rings, moissanite is a better choice of stone than cubic zirconia.

当你正在寻找替代在钻石订婚戒指， moissanite是一个更好的选择的石料比立方氧化锆。

While the limited availability of moissanite makes it more expensive than cubic zirconia, it is still considerably cheaper than real diamonds.

虽然有限的碳矽石使得价格比立方氧化锆，但仍相当便宜的真正的钻石。

Experimental results indicate that a high reaction temperature and quickly ascending temperature speed apparently increase the nucleation number of monoclinic zirconia in the precursor solution.

实验结果表明，高的反应温度和煅烧过程中快的升温速度明显增加了前驱体溶液中单斜氧化锆的形核数。

The Fenghuangshan pluton, which consists of granodiorite and quartz monzodiorite, is the main part of the Fenghuangshan ore field Zircon SHRIMP 206Pb/238U dating shows that the Fenghuangshan pluton formed at (144.2±2.3) Ma, belonging to the Late Jurassic era, which is in accordance with most of metallogenic plutons of the Tongling metallogenic cluster area.

凤凰山岩体为凤凰山矿田的主要组成部分，主要岩石类型为花岗闪长岩、石英二长闪长岩。根据精确锆石SHRIMP测年结果，凤凰山岩体206Pb/238U年龄为(144.2±2.3)Ma，是晚侏罗世形成的一个典型岩体，和铜陵矿集区主要成矿岩体的形成时代一致。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。