查询词典 trace elements

The above performance could meet the requirement of braking. The result showed that heat treatment technology could preferably improve the electric characteristics of the thick-film elements. The best heat treatment technology of Ag-Pd resistance elements kept at 210℃for 130h, bismuth ruthenate resistance elements kept at 150℃ for 50h and copper ruthenate resistance elements kept at 180℃ for 50h.

热处理实验结果表明：热处理可改善厚膜电阻元件电性能，Ag-Pd电阻元件最佳热处理工艺为210℃保温130h，钌酸铋电阻元件最佳热处理工艺为150℃保温50h，钌酸铜电阻元件最佳热处理工艺为180℃保温50h。

Korea Shab produce with human itself the same frequency far infrared, a body of water elements resonance for water elements fierce campaign superfluous fat, heavy metals trapped in the water elements, enabling water elements enable hazardous substances and fats released and discharged in vitro, because Korea homes is "dry cleaning" in Korea homes inside to listen to music, drink coffee, read :: without that kind of steamed into massage room temperature dejected.

丽舍能产生与人体本身相同频率的远红外线，引起体内水分子共振，使水分子剧烈运动，多余的脂肪、重金属被夹在水分子之间，激活的水分子能够使有害物质和脂肪被释放并排出体外，由于丽舍是&干洗&，在丽舍里面，可以听音乐、喝咖啡、看书……而没有桑拿房那种蒸笼似的高温憋闷。

The novel feature of the model is the combined use of different kinds of finite elements, including plane shell elements, bar elements and line elements.

这一新的分析模型的主要特点是在柱子分析中联合应用了平面壳单元、杆件单元和线单元。

The main contents are as follows: Creating finite element model of cradle carriage, top carriage and trail of the howitzer. The structural static stress analysis of are dealt with finite element program system I-DEAS. For accuracy and computation cost, the nonlinear finite element structural dynamics model of the howitzer is created with different elements such as solid elements, shell elements and beam elements.

主要包括以下几个方面工作：建立了该炮摇架、上架和下架的三维有限元静力学模型，并应用I－DEAS有限元软件进行了强度分析；顾及计算准确性和计算成本，应用实体单元、壳单元和梁单元相结合的方法建立了该炮的非线性有限元结构动力学模型。

All-Flash website and the production of similar html website, prior should be painted on paper restructuring plan, including : Terms of the theme, with what kind of elements, which elements need to repeat them use elements of the link between how elements of campaign what style of music, the entire site can be divided into several logic blocks, each logic block the link between how and whether you intend to use Flash construct the station or just doing their part of the preliminary site etc., should be considered within the scope.

制作全Flash网站和制作html网站类似，事先应先在纸上画出结构关系图，包括：网站的主题、要用什么样的元素、哪些元素需要重复使用、元素之间的联系、元素如何运动、用什么风格的音乐、整个网站可以分成几个逻辑块、各个逻辑块间的联系如何、以及你是否打算用Flash建构全站或是只用其做网站的前期部分等等，都应在考虑范围之内。

In the interspersed repeats (SINEs, LINEs, LTR elements, DNA elements), SINEs and LINEs occur most frequently, LTR elements occur less and DNA elements occur the least frequently.

在散布重复序列中，短散布重复序列和长散布重复序列出现的最多；长末端重复序列出现的较少，而DNA elements出现的最少。散布重复序列在大鼠和小鼠内含子中分别占插入序列总长度的33%和35%；散布重复序列在大鼠和小鼠内含子中分别占缺失序列总长度的18%和15%。

The method solves the problems better through adopting the following technical proposal that: the method takes the solid super acid consisting of the VIB group elements or the VIB group elements and the IVB group elements in the periodic table of elements and loaded on a symbiosis molecular sieve as catalyst, and naphtha with the component being C4-C10 as a raw material so as to carry out catalytic cracking reaction at a temperature of between 550 and 700 DEG C, under a pressure of between 0.01 and 0.5 MPa, at a reaction weight space velocity of between 0.1 and 4 hours and with the weight ratio between water and naphtha of between 0.5:1 and 4:1, thereby generating ethylene and propylene.

本发明涉及一种催化裂解制乙烯丙烯的方法，主要解决现有催化裂解制乙烯丙烯催化剂的使用温度高，活性低，乙烯丙烯选择性差的问题，本发明通过使用在共生分子筛上负载由元素周期表VIB族元素或VIB族元素和IVB族元素组成的固体超强酸作为催化剂，以组份为C 4 ～C 10 的石脑油为原料，在反应温度为550～700℃，反应压力为0.01～0.5MPa，反应重量空速为0.1～4小时-1 ，水/石脑油重量比为0.5～4∶1的条件下，进行催化裂解反应生成乙烯丙烯的技术方案，较好地解决了该问题，可用于催化裂解制乙烯丙烯的工业生产中。

Trace element exhibits enrichment of LREE and antipathic elements. Trace element spidergram of obvious right deviation and extremely high containing of Sr, Zr and Hf are different from the negative anomaly of dunite which lies the bottom of ophiolite, but has weak positive anomaly.

微量元素显示LREE和不相容元素的富集，右倾的微量元素分布模式，异常高的Sr含量，Zr、Hf不同于蛇绿岩底部纯橄榄岩的负异常，而显示出微弱正异常，这些特征都与经典蛇绿岩层序底部的地幔橄榄岩不同。

With the development of science and technology, sensitive, rapid, reproducible, simple and accurate analytical methods are required for the determination of trace elements in geological, biological and environmental samples. The direct determination of extremely low concentration of trace element with modern atomic spectroscopic method, such as atomic absorption spectrometry is so difficult. On one hand, the limitations are associated not only with the insufficient sensitivity of these techniques but also with matrix interference.

随着科学技术技术的发展，在进行地质、环境、生物等样品中痕量金属元素的测定时，常常要求达到ppb级的水平，虽然火焰原子吸收分光光度法具有很高的灵敏度，但是要直接测定这些样品中的痕量组分却很难，这是因为，一方面，样品本身的物理化学状态有的不适合直接测定，或组分的含量低于分析方法的灵敏度；另一方面是存在基体干扰。

Systemic studies on quality of Exocarpium Citrus Grandis (1) Pattern recognition of macro and trace element characteristics: Macro and trace elements were selected as classified characteristics to find internal rule through cluster analysis.

化橘红指纹特征的化学模式识别研究：(1)化橘红宏量与微量元素特征的模式识别：以化橘红宏量与微量元素含量为分类特征，通过聚类分析，找出其内在规律。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。