元素的
- 与 元素的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Firstly, the transformation regularness of the mercury and chromium species was described, and the influencing factor, the intrinsic physics and chemical properties of trace element itself, combustion conditions (include temperature and atmosphere) and the chlorine concentrations in the flue gas.
本文以痕量元素中毒性较大的汞和铬为研究对象,利用化学动力学的方法对燃煤过程中痕量元素的形态转化规律及其影响因素进行了分析研究。
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Elements for some integer n.For example,the set algebra for the set T defined above corresponds to a Boolean algebra of 32 elements.
个元素。例如,上文定义的集合T的集合代数就对应与一个有32个元素的布尔代数。
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The type of the substitutable elements must be the same as, or derived from, the type of the head element.
替代元素的类型应该与标题元素的类型相同,或是从中派生出来的。
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The invention discloses a method for preparing novel nanometer TiO2 optical catalyst material, comprising that (1) preparing gel solution of modified lanthanide series that mixing butyl titanate, alcohol solvent, azotic acid, polyvinyl alcohol and lanthanide element,(2) using alkali liquid to treat the quartz fiber leaked from side wall,(3) using drawing membrane and high-temperature sintering to form modified TiO2 optical catalyst material on the surface of quartz fiber.
本发明公开了一种制备新型纳米TiO2光催化材料的方法,包括(1)配置镧系元素改性的溶胶溶液:将钛酸四丁酯、醇类溶剂、硝酸、聚乙烯醇和镧系元素的盐类混合搅拌;(2)利用碱液对侧壁漏光石英光纤进行处理;(3)通过提拉成膜和高温煅烧,在石英光纤表面形成改性TiO2光催化材料。
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The aim of this work is to consider some general regularities observed in the interferent effects occurring in two-component systems composed of an analyte and one interferent, and to describe these effects by a general equation.
本文旨在研究包括待测元素和干扰元素的两元体系中干扰效应的一些规律,筛选出表达其相互关系的数学模型。
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Methods The conditions of solvent extracting active ingredient from pueraria lobata were optimized,and evaluating indIcators were contents of puerarin,lead and mercury, which were determined by high performance liquid chromatography and atomic fluorescence spectrometry.
方法采用高效液相色谱法和原子荧光光谱法测定葛根提取液中葛根素和铅、汞元素的含量,以葛根素和铅、汞元素的含量为评价指标,对影响溶剂回流提取葛根有效成分的条件进行优化。
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This is due to the dry friction damping is merely limited to shroud interface and is a standard local nonlinear problem, when directly solving it, most operations will be used meaninglessly to regenerate its linear elements except for modifications of some elements of stiffiness matrix and damping matrix.
这是由于干摩擦阻尼只局限于凸肩接触面,是典型的局部非线性问题。直接迭代求解时,除了只需对系统刚度矩阵、阻尼矩阵的个别元素进行修正外,有相当一部分运算毫无意义地用于线性元素的重新生成上。
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A revision method of unsatisfied elements and the simple computing formula for the revised Priorly valued are given.
基于一致性均衡权指标,提出了一种排序方法和一种不满意元素的识别方法,给出了不满意元素的调整方法和修正排序权值的简单计算公式。
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Rhyolitic volcanic rocks are generally characterized by rich alkali, silicon, aluminum,and poor calcium, magnesium. They have relatively high Rb,Th and rather low Ba,Sr,Ti,P,and exhibit obviouslv negative europium anomaly (δEu=0.16~0.44).The εNd values of the rhyolitic volcanic rocks range from -5.93 to -2022.Basalts and rhyolites in different cycles show clear geochemical variance.
流纹质岩石总体具富碱、富硅、富铝,贫钙、贫镁特征,其Rb、Th等元素的含量较高,而Ba、Sr、Ti、P等元素含量则明显偏低,并具显著的铕负异常(εEu=0.16'0.44),岩石的εNd值变化于-5.93~~-2.22.I、II旋回玄武岩和流纹岩在地球化学特征上均具明显变异。
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Results In adult homing pigeons, the contents of ferromagnetic elements in lagenal otoliths were less than 0.7% and were the same order in magnitude as those in saccular and utricular otoliths.
结果 成年信鸽瓶状囊耳石中磁性元素Fe、Co、Ni的含量不足Ca元素的0.7%,与球囊和椭圆囊耳石中的含量为同一数量级。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力