查询词典 metallic elements

The metallic bond has made develop the energy band theory arriving at a metallic bond , concrete annotation of model angry from classical free electron the nature that the metallic bond forms and metal crystal physical property.

金属键由经典的自由电子气模型发展到金属键的能带理论，具体地诠释了金属键形成的本质与金属晶体的物理性质。

However, the thermal stability of metallic coordination polymer hardly enhanced in comparison with the polymer never coordinated transitional metallic ions. The reason might be that the energy of coordinate bond formed between metallic ion and polymer was trival in comparison with that of covalent bond in polymer. It started with coordinate bond when the coordinate polymer decomposed under high temperature, so it engendered little for the thermal stability at high temperature.

而金属配聚物较未配位金属的配体高温热稳定性提高不大，可能是由于金属离子与配体之间形成配位键的键能与配位体内的共价键键能相比要小得多，当金属配聚物受热裂解时，首先从配位键开始，因此对高温热稳定性的影响甚微。

Heterozygous metallic: One copy of the metallic gene and one copy of the non-metallic gene.

杂合金属：一份金属基因的副本，非金属基因。

The results show that the surface layer of the air-exposed ZrVFe getter is covered with H20, CO2 and hydrocarbons, both Zr and V exist in the oxidized state, and vanadium oxide starts to reduce at 200℃. The activation results in the enrichment of Zr on the getter surface and the formation of the metallic carbides. H2O, CO2 and hydrocarbons sequentially desorb from the surface with the increase of temperature. H2 is the main gas which desorbs above 200℃ and O2 is not discovered. ZrO2 is reduced to near-metallic or metallic state because O in ZrO2 leaves the getter surface through diffusing into getter bulk.

结果表明：暴露于过大气的吸气剂表面覆盖着H2O、CO2及碳氢化合物等，Zr和V主要以氧化态存在；在吸气剂加热激活过程中，V的氧化物在200℃开始还原；激活过程导致表面近金属态Zr的富集以及部分金属碳化物的生成；随着温度的升高，H2O、CO2及碳氢化合物逐渐从吸气剂表面脱附，在200℃以上，主要脱附气体为H2，整个激活过程未发现O2；ZrO2还原为近金属态或金属态，主要是由于ZrO2中的O通过向吸气剂内部扩散而离开吸气剂表面所致。

The 50 Camden model is named after the UK borough and is available in White Silver metallic, Midnight Black metallic and Blue metallic, all with a contrasting white roof.

50卡姆登模型的名字命名的英国区，可在白银色金属漆，午夜蓝黑色金属和非金属，所有的对比白色屋顶。

Most conventional methods for the extraction of substrate network were based on the use of frequency behavior of Y22 + Y21. However, we found that the feedback signal through the internal circuit elements makes the conductance of the substrate network underestimated while makes the susceptance of the substrate network overestimated. If conventional methods are directly performed on large area SiGe HBTs, a negative effective substrate resistance will be extracted. In the first part of the thesis, a new extraction method for the substrate network parameters of SiGe HBTs is proposed. When extracting the substrate network parameters, the feedback signal through internal circuit elements is considered. All the circuit elements of substrate network are extracted from Ysub instead of Y22 + Y21. The extracted substrate network parameters show a different bias dependence as compared to the conventional methods. By using a simple n+-p junction, we successfully explained the extracted bias dependent substrate network parameters. We developed a series linear regression equation to extracted the intrinsic circuit elements from the ABCD parameters. Compared with the conventional methods which extracted the circuit elements from Y-parameters or Z-parameters, the proposed method is much simple and easy to implement in the computer programs.

传统方法在萃取基板网路参数时，常常由所量得的Y22 + Y21来著手，但我们的研究发现，利用Y22 + Y21的频率关系来萃取基板参数时，基板网路的电导会被低估而基板网路的电纳则会被高估，另外传统基板网路参数萃取方法在萃取大尺寸元件基板网路参数时会得到负值基板等效电阻，以上的非理想效应皆因忽略部份信号会经由本质参数对基板网路做回授的影响，因此本论文中提出一个新的基板网路参数萃取方法，在萃取基板网路参数时考虑了由本质参数所回授的信号，并且由Ysub而非Y22 + Y21萃取基板等效电阻、基板等效电容及基板与集极空乏电容，成功的解决上述的一些非理想效应，所得到的基板网路参数与集极偏压的关系与传统方法所得的趋势相异，经由一个简单的模型成功的解释了所萃取得到的基板网路参数与偏压的关系，在萃取本质参数时，我们舍弃传统萃取方法中常用的Y参数或Z参数萃取方程式，而改用ABCD参数，并提出一系列的线性回归方程式，萃取所有的本质参数，与传统方法比较起来，比较简单而且容易建立在使用者的参数萃取软体中。

The effect of joint deformation to truss displacement: 4 kinds of steel tube truss compute models are established making use of shell elements, truss elements, beam elements and combination of beam elements and truss elements.

采用板壳单元、桁架单元、梁单元以及弦杆为梁单元和腹杆为桁架单元的混合模型等四种计算模型分别建立了一个钢管桁架的有限元模型，计算并整理了各模型下桁架腹杆的轴力及各节点的位移。

The method of reduced ammonia marinate was selected to do the distill experiment of cobalt and of other metallic elements from ocean manganese nodules and the iron in marinated solution was removed with ammoniojarosite and cobalt was separated from other metallic element with method of sulfuration deposition.

选择还原氨浸法对大洋锰结核中的多金属进行了浸取实验，并用铵黄铁矾法对浸取液进行了除铁及用硫化沉淀法对钴进行分离提取等实验。

From the results, we presume the Lunar interior solidified 3 billion years ago, massive planetoids' strike caused the unevenly distribution of metallic elements, made the metallic abundance in the surface of Lunar highland lower than Lunar mare generally, and lead to the formation of craters on the Lunar surface.

由此推测30亿年前月球内部逐渐固化，大量小行星对月表岩石频繁的撞击导致金属元素分布不均衡，使金属元素在月球高原地带普遍含量低于月海，同时也形成了现在我们看到的遍布月表的环形山。

A deep-sea manganese contains a great deal of metallic elements,if exploited properly,it'll be a valuable substitute resource for land metallic ore.

深海锰结核中含有大量金属元素，若开发得当将是一种宝贵的陆地金属矿产替代资源。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。