二金属的

The luminescent propetties of RE activated tungstates are dealt with in respect to mixed alkali earth metal tungstates,fluorotungstates,isopolytungstates,heteropoly tungstates.

本文从单钨酸盐、混合二价金属钨酸盐、卤钨酸盐、同多钨酸盐、杂多钨酸盐等方面综述了掺杂稀土离子钨酸盐的发光特性研究情况。

Buried GaAs/Al〓Ga〓 As quantum wire arrays grown by metal-organic chemical vapor deposition on V-grooved GaAs substrates.

二、用金属有机物化学气相淀积在GaAs V字形沟底制备的掩埋GaAs/Al〓Ga〓As量子线列阵。

Currently has a four-post type, frame type, single column, such as horizontal structure, the production of generic products include hydraulic machine, single-action hydraulic sheet metal punching machine, double-acting hydraulic press sheet tensile, hydraulic head machines, metal extrusion hydraulic machine, a dedicated hydraulic motor manufacturing machines, automotive hydraulic press dedicated motorcycle parts, Rubber and Plastic Products hydraulic machines, hydraulic squeeze casting machine, hydraulic press powder products, calibration of hydraulic pressure capacity and the kinds of non-standard machine, hydraulic equipment and production lines, such as twenty series of more than more than 300 species, an annual production capacity of various types of hydraulic press 400 Product Units / 2600 tons of production capacity.

目前已形成四柱式、框架式、单柱式、卧式等各类结构形式，所生产产品包括通用液压机、单动薄板冲压液压机、双动薄板拉伸液压机、液压打头机、金属挤压液压机、电机制造类专用液压机、汽车摩托车零部件专用液压机、橡塑制品液压机、挤压铸造液压机、粉末制品液压机、校正压装机以及各种非标液压机、液压设备和生产流水线等二十余个系列三百多个品种，形成年产各类液压机产品400台／2600吨的生产能力。

Was officially established in the OO April 2004, sets for the production and sale of one operating company is involved in all walks of life, flagship product for the electric heating elements, temperature meters, temperature sensors, all kinds of hose, high temperature wire , Cable bridge, electrical and mechanical equipment, fabricated metal products (to accept non-standard order) companies.

上海亘恒机电设备有限公司正式成立于二OO四年四月，集生产和销售为一体，经营产品涉及各行各业，主打产品为电热元件、温度仪表、温度传感器、各种软管、高温导线、电缆桥架、机电设备、金属制品的公司。

Followed thirty-four revisions performed with use of tantalum augments and tantalum cups for a mean of thirty-four months. Two cups failed and required re-revision, and short-term success was seen after 91% of the revisions.

Garbuz随访了34例使用金属钽增强的翻修病例，平均随访34个月。2例失败并行二次翻修，翻修后短期成功率为91％。

This paper presents a comprehensive introduction of metal oxides thin film, especially research and application of antimony-doped tin oxide conductors.

本论文介绍了金属氧化物薄膜，特别是锑掺杂二氧化锡薄膜的研究现状以及应用领域。

Density functional calculations predicted that both the ZrO3 and HfO3 molecules possess a closed-shell singlet ground state with a non-planar Cs geometry, in which the side-on coordinated O2 falls into the peroxide category.

结果表明ZrO3和HfO3都具有单重电子基态以及非平面的Cs构型，可以看作金属一氧化物二价正离子与过氧配体形成的络合物。

The simple and fast determination method presented is based on initial chelation of Sn4+, Cu2+, Pb2+ and other metal ions with EDTA and its subsequent decomposition with trihydroxybenzoic acid, mercaptosuccinic acid and dithiocarbamic propanoic acid.

本文提出的简易、快速测定方法是用EDTA螯合锡、铜、铅和其它金属离子，然后分别用三羟基甲酸、巯基丁二酸和氨荒丙酸解蔽。

After the digestion of the samples of the effort of the mixed acid, in the condition of pH=2~2.8, the lead in the sample solution and the added pyrrolidine a two-ammonium thiosulfate can come into being a metal complex. With A methyl isobutyl ketone extraction, the lead complexes can be divided from the water phase.

采用混合酸对样品进行消化处理后，在pH2~2.8时，样品溶液中铅与加入的吡咯烷二硫代氨基甲酸铵形成金属络合物，用甲基异丁基甲酮萃取，使铅络合物与水相分开。

Computers have so far been based on two-dimensional chips made from silicon, but there are developments already well advanced to make three-dimensional chips with vastly improved performances, and even to construct them out of biological molecules that can be miniaturised even more than metal-based computer chips.

目前，二维芯片主要用硅制造，现在已经开发了更先进，能量更大的三维芯片，甚至能够用生物分子制造比金属芯片体积更小芯片。

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。