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In this paper, the researches on the substitutions of Ca-polyhedral, P-tetrahedral and channel positions in apatite structure are reviewed, the structural sites, substitution forms and mechanism of isomorphic ions are discussed, and the influence of the s
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摘要综述了作为重要环境矿物材料的磷灰石在钙位、四面体位和结构通道位置上类质同象替换的研究进展，讨论了替换离子的结构占位、替换形式和机理，并就替换对这种矿物在环境治理领域应用的影响进行了简要评述。 |
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In this paper, the resistance of sweet corn varieties to Asian corn borer (ACB) (Ostrinia nubilalis) were evaluated by means of host experimental population life table and natural population life table; The order of their resistibility is as follows: S2>Y
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摘要利用亚洲玉米螟实验种群生命表和自然种群生命表方法评价甜玉米品种对亚洲玉米螟的抗虫性，结果得出亚洲玉米螟对不同甜玉米品种的抗性大小依次为：穗甜2号>奥甜2号>华1>奥甜1号>超甜20。 |
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In this paper, the results from two experimental locations are presented, and discussions are made on possible resolution of nutrient imbalance which would occur specially by increasing high yield output in soil-crop system.
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本文提供了两个地点的试验结果，并且讨论了因提高产量而在土壤作物系统中造成养分不平衡时可能的解决办法。 |
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In this paper, the role of transcendentalism in the transformation is explored in terms of individualism, American values, tolerance, and innovation.
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从个人主义传统、美国价值观、自由宽容精神以及实践创新精神等方面，论述了超验主义在塑造美国国民性格中的作用。 |
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In this paper, the roles of iron in different pathways of protein nitration are introduced, and the results indicated that microelement iron in vivo plays an important role in protein nitration.
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本文介绍了铁在不同酪氨酸硝化途径中的作用，结果提示体内的微量铁对蛋白质硝化起着重要作用。 |
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In this paper, the scheme of mirror-protection circuit is introduced; the mathematics model is built and confirmed; and the protective network's influence on the stabilization of adaptive optics system is analyzed.
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文章介绍了保护网络的方案，建立数学模型并进行了仿真验证，分析了保护网络对自适应光学系统稳定性的影响。 |
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In this paper, the scopes of application and the limits about four aldehydie reagents were studied through some experiments.
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摘要通过一些试验对西夫试剂、托伦试剂、斐林试剂和本尼迪克试剂在区别醛酮中的适用范围进行了验证比较。 |
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In this paper, the similarity degree of two interval-valued fuzzy sets in one point is defined on the basis of the similarity degree of two vectors, then a new fuzzy reasoning method is given on the guide of this definition: reasoning method by similarity
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摘要在两向量相似度的基础上，定义了两个区间值模糊集在一点处相似度，然后在此基础上提出了一种新的模糊推理方法―区间值模糊集相似度推理方法。 |
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In this paper, the software for the die casting technology parameters design is built based on the optimization of the die casting system matching, and is used for the design of the die casting technology parameters, such as the cross section area of the
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文章基于压铸系统匹配优化的思想，建立压铸工艺设计软件，使用软件进行内浇道截面积、充填速度和充填时间等压铸工艺参数的设计。 |
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In this paper, the source of flicker is analysed, several improvement approaches are discussed, and finally a practical solution is proposed.
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本文分析了闪烁产生的根源，探讨了几种改进的方法，并提出了切实可行的解决方案。 |
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In this paper, the space vector PWM controlled PMSM is analyzed, the simulation model of apace vector PWM controlled PMSM is presented, and speed control system is simulated by MATLAB6.5/SIMULINK5.0.
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分析了空间矢量永磁同步电机数学模型，建立了永磁同步电机空间矢量控制系统仿真模型，并在MATLAB6.5/SIMULINK5.0环境下对变频调速系统进行仿真实现。 |
