查询词典 elements

The laser-cladding layeron the alloy consists of matrix phase of over-saturation solid solution γ and complexhexagonal carbide M_7C_3. Under certain condition, with fast laser scanning speed, the oversaturation solubility of elements increases in γ, and the precipitation of the complexcarbide M_7C_3 decreases, so that the microhardness increases and the wear resistance de-creases. But at slower laser scanning speed, more complex carbide M_7C_3 may precipitate, andthe wear resistance may be improved. Therefore, it is believed that the principal factor in im-provement over wear resistance is the precipitation of carbide M_7C_3, while overmicrohardness is the over-saturation solubility of elements in matrix phase.

表明：(1)激光熔覆合金层是由过饱和的γ基体相和复杂的六方M_7C_3碳化物相所组成(2)在其他参数不变的情况下，随激光扫描速度的提高，γ基体相过饱和度增大，而析出的碳化物含量减少，因而合金层的硬度升高，耐磨性有所下降；而降低激光的扫描速度，碳化物M_7C_3析出增加，有利于提高合金层的耐磨性、因此碳化物M_7C_3析出量是提高耐磨性的主要因素，而增加基体相γ的过饱和度则是硬度提高的主要因素

The coprecipitation is based on the formation of water-insoluble inner complex compounds of the trace elements with-SH group-containing reagent and the formation of disulphide directly in the solution owing to the easy oxidizability of the-SH group. During the formation of the solid disulphide phase the trace elements are coprecipitated.

痕量元素和含-SH基团的试剂形成不溶於水的螯合物，由於-SH基团易被氧化从而直接在溶液中形成固相二硫化物，同时将溶液中的痕量元素共沉淀下来。

The 32 genera of pollen-allergenic plants in Beijing urban area were mainly North Temperate elements, occupying 40.6%, followed by Cosmopolitan and Pantropic elements.

北京城区各功能区中花粉强致敏草本的盖度，从大到小的顺序是城市废弃地＞体育中心及机关单位＞道路绿地＞公园＞居民区＞学校＞广场；4北京城区木本花粉致敏植物的花期主要集中在3-4月，草本在7-9月。

Based on detailed studies of petrographic characteristics and major elements of minerals, the authors analyzed trace elements of Cpx in the peridotitic xenoliths from Jining area, Inner Mongolia.

在详细岩相学特征和组成矿物主元素分析基础上，重点对内蒙古集宁玄武岩中橄榄岩包体的单斜辉石进行了激光原位微量元素研究。

A vapor-permeable and waterproof sole for shoes, comprising: a lower flat element made of shaped rubber-like material, which has a hollow upper region delimited by a border with air passage openings which extend laterally with respect to the ground resting plane; an upper element; a membrane made of waterproof and vapor-permeable material, which is interposed between said lower and upper elements at said hollow region; said lower and upper elements and said membrane being joined hermetically in the perimetric regions of mutual contact.

一种用于鞋子的透气防水鞋底，包括：一由成形橡胶类材料制成的平的下构件，它具有一中空上部区域，该上部区域由一边界界定而成，所述边界具有相对于着地抵靠平面横向延伸的通气开口；一上构件；一由防水透气材料制成的隔膜，该隔膜夹设在所述下构件和上构件之间，并在所述中空区域内；其中，下构件和上构件以及所述隔膜在它们相互接触的外周区域内密封地结合。

In this doctoral dissertation, the modes of occurrence of about 30 elements and their combination with macerals and minerals in the coals from 10 typical coalfields in China are systematically researched by sink-float tests and petrological methods based on the investigation to the concentration distribution of trace elements in Chinese coals.

本文从分析中国煤中微量元素含量分布的基本特征出发，选择了中国10个有代表性的煤样，通过浮沉试验和煤岩分析等手段，系统地研究了中国煤中30余种微量元素的赋存状态，主要是这些元素在各种煤岩组分中的分布特征。

This dissertation is characterized with the application of petrological methods in the study of trace elements in coals. The modes of distribution of trace elements in macerals and minerals in coals are proposed by means of the integration of two well-operated technologies, sink-float test and maceral analysis.

本文的主要特色在于将煤中微量元素研究与煤岩学方法紧密结合，运用浮沉试验及煤岩分析两种成熟技术，有效地解决了煤中微量元素在各种组分中的分布研究问题。

Gathered in different growth years and from different habitats in Sichuan. MethodsThe samples were determined by means of ICP/AES. The principal components analysis and cluster analysis of SPSS were applied for the study of characteristic elements. ResultsThe analysis results showed that Al,Ca,S,Fe,Mn,Ni,Pb,and Cd might be the characteristic elements in Phellodendron chinense Schneid.

方法采用ICP-AES法，对不同产地的川黄柏中16种微量元素的含量及川黄柏不同生长年限元素含量的变化进行测定，以微量元素含量为指标，用SPSS主成分分析法和聚类分析法对川黄柏中的特征元素进行分析。

Four sets of actual aerial photos are used to test;which are at different scale and in different terrain.The empirical results verify that image elements of exterior orientation obtained by a POS can satisfy the accuracy requirements of topographic mapping,no matter which scale and terrain the empirical block is classified to.However,to satisfy the accuracy requirements of object point in elevation,the accuracy requirements of exterior orientation elements are at least one time higher than that in planimetric mapping.

通过对摄自不同地区、多种摄影比例尺航摄影像的实验表明，由POS系统获取的影像外方位元素进行安置元素测图完全可以满足各种比例尺、不同地形图测绘的精度要求，但为了满足地物点的高程精度，对影像外方位元素的精度需求较用于平面测图时的至少要高出一倍以上。

In addition to its performance technology platform, the AIR JORDAN 2009's modern design elements offer a bold style statement by incorporating satin pleats and polishable dress-shoe-like panache leather, the first AIR JORDAN to utilize these luxurious design elements.

除了它的性能技术平台，乔丹2009年的现代设计元素，提供了一个大胆的作风，把缎子声明褶皱和polishable穿着鞋样耀目皮革，第一乔丹利用这些豪华的设计元素。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"