From the chemical composition, trace element, inoculation and thermal exchange of metal mold casting, the principle of chill formation and the effective methods for preventing chill were studied.
文章从铸铁的化学成分、微量元素、孕育处理及金属型的热交换方面叙述了产生白口的原理及防白口的有效方法。
The Al, Pb, Cu, Cd, Fe, Sn etc trace element in the electrolytic zinc were accurately and quickly measured by using ICP-AES method.
采用ICP—AES法准确、快速地测定电锌中的铝、铅、铜、镉、铁、锡等微量元素，并对方法的准确度和精密度进行了检验。
Objective: To investigate the effect of trace element lithium on the occurrence of endemic gaiter.
目的：研究碘缺乏病流行地区除严重缺碘外，微量元素提对甲状腺肿的影响。
Previous research has suggested that selenium plays a role in keeping the immune system healthy, and that HIV patients tend to show a depletion in the trace element.
以往研究表明硒在保持免疫系统健康方面发挥重要作用，并且艾滋病患者表现出微量元素缺乏。
The trace element content of 240 children with repetitive respiratory infection was detected and studied.
检测了240例反复呼吸道感染患儿血微量元素含量。
Trace element test results are affected by various factors and the establishments of reference intervals are also complicated.
微量元素检测受到多种因素的影响，其正常参考区间的建立也显得非常复杂。
Methods: Trace element zinc in serum was determined by the atom absorption spectrum method.
方法：用原子吸收光谱法测定银南地区儿童微量耳垂血血清微量元素锌。
Trace element Zn in 86 children was determined and investigated.
对86例儿童微量元素锌水平进行了调查研究。
Narrated the trace element selenium with emphasis lacks in the correlation disease arises the function.
重点讲述了微量元素硒缺乏在相关疾病发病中的作用。
The results show that medium composition, trace element concentrations and fungi strains can affect the bioconcentrating action of edible fungi.
结果显示：培养基成分、微量元素浓度和食用菌菌株会影响食用菌的生物富集作用。
For trace element analysis, storage of organic solvents.
用于痕量元素分析，存储有机溶剂。
The biochemical specificity, function, absorption principle, production, application and development on research of organic trace element are elaborated in this article.
本文综述了有机微量元素的生化特性、功能作用、吸收机理、生产应用和研究进展。
Methods: to determine the contents of 14 sorts of trace element in Fanbai Grass by atomic spectrometer.
方法：用原子吸收分光光度法测定了翻白草14种微量元素的含量。
It has many similarities to the greenstone belt in respect to the sequence of metamorphic complex, petrochemistry and trace element characters.
从变质杂岩地层层序、岩石化学、微量元素特征来看，它与绿岩带有许多相似之处。
The wild benthic Marine algae include rich nutrient and trace element and active substance of biology.
野生底栖海藻含有丰富的营养，尤其是微量元素和生物活性物质。
The geochemical indicators, such as mineral, trace element and isotopic geochemistry and organic geochemistry indices, are of the most importance in the study of anoxic environment.
在缺氧环境的研究中，地球化学指标如矿物、微量元素、同位素和有机地球化学指标最为重要。
"Platinum" is a powerfully radioactive trace element.
“铂”：非常有辐射力的微量元素。
And according to the mineral composition, chemical composition and trace element content, the evolution series of the magma is redefined.
并依据各单元的矿物成分、化学成分、微量元素含量的变化，重新厘定了岩浆的演化顺序。
The sewage irrigation still is the major influencing factor on soil trace element variation during the agriculture production.
污水灌溉仍是农业生产中土壤微量元素变化的主要影响因素。
Chromium is an essential trace element for organism and the essential ingredient to keep GTF's activity.
铬是人和动物所必需的微量元素，是GTF(葡萄糖耐量因子)的必要活性成分。
The result indicated that support vector machine method has the obvious superiority in the forecast of breast cancer incidence rate based on gain quantity of trace element.
结果表明：在根据微量元素摄入量进行乳腺癌发病率预测方面，支持向量机方法有明显的优势。
The results showed that the effects of different middle and trace element fertilizers on Brassica chinensis were different.
结果表明，小白菜对施用的各种中量、微量元素在不同质地的土壤上有不同的响应；
Equilibrium of trace element includes equilibrium of all elements in human body and equilibrium of proportion among various elements.
微量元素的平衡包括整体元素在人体中的平衡，微量元素之间比例的平衡。
Through the study about lanthanon and trace element, we can obtain the Guanghan claypan formation that has the homologous ingredient characteristic.
通过对微量元素和稀土元素的研究，可以得出广汉粘土层的形成具有同源成分特征。
The nutritive indexes of several ingredients, such as amino acid, trace element, vitamine, etc.
测定了芦蒿不同部位的氨基酸、微量元素、维生素等营养指标。
The trace element fertilizer rich in silicon was made and tested on the rice, sugarcane and peanut.
使用自制的富硅微量元素肥料对水稻、甘蔗、花生进行实验。
The prospect and problems of speciation analysis of trace element in Traditional Chinese Medicine were also discussed.
探讨了中药中微量元素形态分析方法的前景及存在的问题。
Objective To observe the impact of trace element changes on hair structure by testing the hair of children with abnormal trace elements.
目的对微量元素异常患儿的头发进行检测，观察微量元素变化对头发结构产生的影响。
Objective To observe the impact of trace element changes on hair structure by testing the hair of children with abnormal trace elements.
目的对微量元素异常患儿的头发进行检测，观察微量元素变化对头发结构产生的影响。
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