查询词典 trace elements

The purpose was to study the absorption and utilization law of cobalt and the interrelationship among trace elements in Alfalfa.

研究苜蓿对钴的吸收利用规律及苜蓿体内微量元素之间的相互关系。

The results showed: the three trace elements all have significant effect on the content of aloin and aloe-emodin.

结果表明：三种微量元素对芦荟体内芦荟苷、芦荟大黄素含量皆有影响。

The effect of three trace elements on the content of aloin and aloe-emodin in Aloe barbadensis was studied by sandy culture experiment.

本研究采用砂培试验初步探讨了锰、铁、锌三种微量元素对库拉索芦荟中芦荟苷、芦荟大黄素含量的影响。

The dissolving-out quantities of sanative elements in Maifan stone were analyzed on the different conditions (particle sizes,temperature,time,dissolving-out and activation treatment),and the dissolving-out of Sr element at different time and temperatures was measured and the kinetic of dissolving-out of trace elements was studied.

通过改变颗粒尺寸、温度、时间、溶出次数及活化处理等条件，分析了麦饭石溶出液中微量元素的溶出情况；通过ICP AES检测了不同时间及温度条件下微量元素Sr的溶出量，并进行了元素溶出的动力学特征的研究。

Relevant conditions were optimized to ensure that most of trace elements evaporated steadily during laser ablation in layer-by-layer. So the impurity elements of low boiling point were determined successfully.

对分析条件进行了全面系统的优化，使高温合金中大多数痕量元素通过层层剥蚀的激光剥蚀过程被稳定地蒸发，从而顺利对低沸点杂质元素进行了测定。

The analysis of lamprophyrespetrology chemistry reveals that it is a series of high potassium- potassium dike rock,it is abandunt in alkali(K2O,Na2O)and has a large reducing capacity.The diagrams of the major-element variation shows that the geochemical compositions-variations of the major oxides have vague general rules of homologous magmatic fractional-crystallization.the pearce diagram of trace elements shows it intensively enriched in LILE,intensively depleted in coherence elements(such as CrNi.et al).

煌斑岩的岩石化学分析表明，乳山地区与金矿成矿相伴生的煌斑岩为高钾质-钾质的碱性脉岩系，富碱(K_2O、Na_2O)，具较强的还原能力(FeO含量均远高于Fe_2O_3含量)，在哈克图解上，主要氧化物的变异规律表现出岩浆分离结晶演化的特点；微量元素的Pearce图呈现强烈的富集LILE，强烈亏损过渡族元素，稀土元素呈向右倾斜的轻稀土富集配分模式，在有关源区性质判别的图解(Cr-Ce／Sr图解和Ce／Yb-Ta／Yb比值图解)上均显示富集地幔源区的性质。

The analytical method of major elements and trace elements in AB5 type hydrogen storage alloys and mischmetal was researched deeply.

对于制备镍氢电池负极材料的AB5型储氢合金，制备储氢合金的原材料混合稀土主体元素和杂质元素的分析方法进行了较为详尽的研究。

This paper deals with and summarizes the research and importance of ductile shear zones and presents the future direction and aim for the research of the ductile shear zones around the world. Four aspects of studies of the ductile shear zones have been proposed in this paper as follows:(1) The stress environment including the mineral assemblages, deformation, stress-shearing parameters;(2) The major element sequence and activation under condition of stress;(3) The variations of trace elements and REE, their transportation distributions under strong natural deformation as well as variations of mineral crystal parameters, which can also control the element changes during the ductile deformation;(4) The relationship between element migrations, activation and stress, which will present the new evidences for the studies of dynamic diagenesis and mineralization as well as the studies of evolution of ductile shear zones developed in middle and low levels.(5) The analysis of elements and isotopes in mylonites on the micro-scale are crucial for the understanding of component migrations during the mylonization.

对韧性剪切带及其变形岩石的研究现状和研究意义进行系统的综述，提出了未来韧性剪切带及其糜棱岩的研究方向和目标：①系统研究糜棱岩中主要造岩矿物组合及其变形特征，计算剪切变形岩石的应力－应变参数，搞清韧性剪切带所处的应力应变环境；②系统研究韧性剪切带岩石在天然分强剪切应力作用条件下常量元素迁移机制及活化转移的应力排序问题；③系统研究剪切变形作用过程中岩石化学组成的微量和稀土元素变化，讨论强变形条件下岩石中微量元素活化和迁移规律，深入探讨微量元素迁移的动力控制，包括稀土元素配分变化的应力制约以及应变矿物晶格化学变化行为及其对其寄主的变形岩石元素在应变过程中迁移变化的制约和影响；④从理论上探讨天然强剪切应变条件下岩石中组分活化、转移与应力的因果联系，为深入探讨韧性剪切带动力成岩作用提供理论的科学依据，为探讨中、下地壳中韧性剪切带的形成和演化提供科学依据，同时为韧性剪切变形作用条件下成岩、成矿地球化学作用提供理论和实验依据；⑤现代分析技术如激光同位素原位分析以及激光ICP-MASS分析技术对研究变形域内的岩石的元素和同位素的活化迁移规律，对深刻揭示糜棱岩化过程中的元素活化迁移机制提供更高质量的地球化学证据具有重要的作用。

These types show certain differences in compositional characteristics of trace elements and rare earth elements and were formed respectively at different ore forming stages of gold, being evolutional products of gold in the process of ore forming process.

它们在微量元素和稀土元素的组成特征上有一定的差异，分别形成于金的不同成矿阶段，是金在成矿作用过程中演化的产物。

There are the highest content of ferrimagnesium and rare earth elements in leaf of plant on basaltic rock type, the highest content of trace elements in leaf of plant on red soil of granite type, and the highest of Ca in leaf of plant on red soil of limestone type.

玄武岩型红土上覆植物叶中的铁镁和稀土元素含量最高，花岗岩型红土上覆植叶中痕量元素含量高，灰岩型红土上覆植叶中钙含量最高。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。