查询词典 trace element

Finite element methods are analyzed, where the stress is approximated by the discontinuous Raviart-Thomas element of lowestorder,and the velocity by the piecewise constant element,and the Lagranian multiplier by the trace space of the piecewise continuous linear element.

然后发展其有限元方法：对应四变量分别用间断型Raviart-Thomas最低阶元，分片常数元，连续线性元和连续线性元的迹空间，我们获得了稳定性和最优误差界，通过后处理办法，我们得到一个适合于计算的速度-压力格式，该格式可视为"mini"元方法的一个变形（本文格式中引用了局部投影算子）。

The finite element model included two types of main element: beam element for concrete and truss element for internal unbonded or external tendon. The end nodes of main elements were connected with internal constraints named MPC in ABAQUS. Spring elements with very large stiffness were set up at the place of the deviators of externally prestressed beams, or along the span with relatively little space of unbonded internally prestressed beams. The modified Riks method is utilized to trace the entire structural response of beams prestressed with unbonded tendon from zero to ultimate loads. The reliability of the analysis model is verified by analytical results of typical test beams in comparison with experimental ones.

该有限元模型由两类主单元组成，即混凝土梁单元和体内无粘结或体外预应力筋桁架单元；主单元的端部节点用ABAQUS的内在约束MPC连接；在体外预应力梁的转向块处，或沿体内无粘结预应力梁全跨并以比较小的间隔设置刚度足够大的弹簧单元。

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。

The trace element contents of Eupatorium lindleyanum DC in different parts in different harvest periods and their correlation to their pharmacological activities were analyzed by determining the pH value and trace element contents of Eupatorium lindleyanum DC in planting field.

方法］通过则定了野马追种植大田内土壤的pH值及其微量元素的含量，分析了野马追不同采收期各部位的微量元素含量以及其与药理活性间的相关性。

The appearance of the specific levirate custom existing in the Hun and the Hsienpei Tungusic in Han and Wei dynasties is the inevitable results of the laws of geographical environment and social development. Living in the high latitudes and dry cold inland areas, plus being heavily short of virtual zinc, a trace element in soil, lead to a high death rate of child-bearing age women. In order to guarantee a normal birth-rate, the Hun and Hsienpei Tungusic had to adopt levirate to ensure healthy child-bearing age women to give birth to offspring as many as they can.2 Trace element in soil under geographical environment and the cultural process of Huang-huai-hai Plain(the Yellow River, Huai River and Hai River ) in historical period.

本文具体的研究涉及三个问题：地理环境下的土壤微量元素与匈奴、鲜卑的"收继婚"问题：我认为汉魏时期匈奴和鲜卑族中特有的"收继婚"俗的产生，是地理环境和社会发展规律相互作用的必然产物；由于匈奴、鲜卑所处纬度高、气候干燥而寒冷的内陆地区，加之土壤微量元素中严重缺乏有效锌，因而造成了育龄妇女的大量死亡，以致为了保证正常的种的繁衍，匈奴和鲜卑不得不采取"收继婚"的婚姻形式，来确保健康的育龄妇女尽可能的去生育后代。

The trace element characteristics of entire otolith and the thermoluminescence characteristic can also be used to appraise the quality of water. Moreover, the trace element characteristics of otolith increments may be take a sign to dynamicly monitor the quality of lake.

通过耳石的全耳石元素特征和热发光特征可以对水质进行评价，而耳石的不同生长环带中的元素特征可以作为湖泊动态监测的一个标型。

The correlation among different trace element of one stalagmite can reflect whether the factors which control trace element change are the same.

4同一石笋不同元素比值之间的相关性可以反映控制元素比值的因素是否相同。

For Southwestern Margin of Aqikekule Lake ophiolite, their field geological, petrological, minerological, petrochemical and geochemical characteristics show that:① it outcropped as tectonic slices along the near west-to-east strike Kunzhong fault and is composed of metamorphic perodotties, cumulates and volcanic rocks, in which, chromites are distributed in the upper part of metamorphic peridotites as pods, or in the lower part of cumulates as near-strata;② metamorphic peridotites include serpentinites, chromite-bearing serpentinites, chlorite-epidote schists and chromitites, of which, chromitites have nodular and orbicular structure, and cumulates include pyroxenits, serpentinites, chromite-bearing serpentinites, chromites and metamorphically mafic rocks and only basalts are seen in volcanic rocks;③ Cr# of chromites suggest that they formed in the SSZ and Al〓O〓 and TiO〓 of metamorphic peridotites also suggest SSZ environment;④ metamorphic peridotites have V type and enriched LREE patterns, cumulates have from strongly depleted LREE, flat REE to enriched LREE patterns with universally striking positive Eu anomalies and basalts show flat REE or slight enriched LREE patterns with no Eu anomalies;⑤ trace element and Sm-Nd isotope characteristics of metamorphic peridotites imply their strikingly heterogeneous mantle character ε〓(t+4.39～+26.20 and later Nb, Ta fertilization;⑥ trace element characteristics of basalts and their tectonic diagrams show they probably formed in the rifted island arc or back-arc basin environment.

对阿其克库勒湖西南缘蛇绿岩，野外地质、岩石学、矿物学、岩石化学以及地球化学等特征表明：①该蛇绿岩以近东西向、沿昆中断裂呈构造岩片出露，由变质橄榄岩、堆晶岩和火山岩三个单元组成，其中见铬铁岩呈豆荚状产于变质橄榄岩的上部，或呈似层状产于堆晶岩的下部；②变质橄榄岩包括蛇纹岩、含铬铁矿蛇纹岩、绿帘绿泥片岩和铬铁岩等类型，其中，豆荚状铬铁矿具有结核状构造和球状构造，堆晶岩包括辉石岩、蛇纹岩、含铬铁矿蛇纹岩、铬铁岩和变质基性岩等类型，火山岩仅见玄武岩；③铬铁矿的Cr#表明其形成在俯冲带，变质橄榄岩的Al〓O〓和TiO〓成分也指示了SSZ环境；④变质橄榄岩的稀土配分型式见V型和LREE富集型两种型式，堆晶岩表现出从LREE强烈亏损、REE平坦分布到LREE富集的配分特征，并且普遍具有醒目的正Eu异常，玄武岩的稀土配分型式表现为平坦型或LREE略富集，无Eu异常；⑤变质橄榄岩的微量元素及Sm-Nd同位素特征指示了其地幔的显著不均一性ε〓(t为+4.39～+26.20以及Nb、Ta在后期的富集；⑥玄武岩的微量元素特征及构造图解表明其可能形成在裂谷岛弧或不成熟的弧后盆地环境。

It comprises a chassis, a bell cap, a begrime element and disperse oar. Wherein, said bell cap is mounted above the begrime element via the support element; the begrime element is mounted on the chassis which comprises a inner screen component, a outer screen component, a cover board and a chassis to form the annular space structure; stuffing or protective agent can be filled into annular space according to the demand; the inner cylinder formed by inner screen component is in the hollow cylinder structure; the part of chassis relative to the inner cylinder of inner screen component is on the open structure under which the disperse oar is mounted via the connection element.

包括底盘、泡帽、积垢部件和分散桨，泡帽通过支撑件固定在积垢部件上方，积垢部件固定在底盘上，其结构是内筛组件、外筛组件、盖板和底盘构成的环隙结构，环隙内根据需要使用填料或保护剂，内筛组件构成的内筒是空筒结构，底盘与内筛组件内筒对应部分为开口结构，开口结构下方是通过连接件固定的分散桨。

The energy-orthogonal character of Wilson element,Q_1 element,rotated Q_2 element,Bergan 9-parameter triangular element[6],5- parameter[23] and 8-parameter rectangular element[20] is analysed in this paper.

全文提供：购买充值卡，就可下载本篇论文全文中文摘要：本文分析了Wilson元，Q_1元，旋转Q_1元，Bergan 9参三角形元[6]，5节点元[23]和8参数矩形元[20]的能量正交性。

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。