查询词典 levi decomposition

The differential eguations and boundary conditions are established, based on these hypotheses. The theoretical formulary about sample atom number with different diffusion coefficient are reasoned out; the relationship between the isotope abundance ratio and the sample wastage of melting and solid samples and the samples simultaneously at evaporation and decomposition are discussed in theory.

根据这三条假设建立了样品原子数的微分方程及边界条件，推导出了不同扩散系数的样品原子数的理论公式，从理论上讨论了熔融态、固态样品以及蒸发分解同时发生的样品同位素丰度比与样品消耗量间的关系。

This would promote the decomposition of acetaldehyde has not prematurely enter the kidney.

这将促进乙醛的分解并没有过早地进入肾脏。

A process based upon solvent extraction has been developed for the recovery of phosphoric acid from a leaching liquor obtained by decomposition of phosphate rock with sulfuric acid.

本文采用二丁基亚砜作为萃取剂，对于用硫酸分解磷矿而得的粗磷酸进行多级逆流萃取及反萃取，以获得高纯度的磷酸和磷酸盐。

In the acidic conditions, decomposition of organic material in the soil is slow.

在酸性环境下，有机物质的沉积作用是缓慢的。

Can be used as a compost decomposition activator

能作为复合堆肥的催化剂。

In addition, reaction kinetics of thermal decomposition of precursor was determined by thermogravimetry analysis.

研究了包覆过程和焙烧过程的最佳工艺参数，以及通过热重分析研究了前驱体热分解过程的反应动力学，提出了反应动力学模型

We discussed the channel simulation method of wireless communications based on harmonic decomposition technique, explained why DFT could be applied in the simulation, and analyzed the additional error brought by the interpolation method.

四在分析的基础上，提出了一种基于谐波分解的信道仿真的快速方法，充分利用实际信道仿真应用中采样频率远远高于信道带宽的特点，对仿真算法实现加速。

The influence of Na2CO3 as additive to the process is the combined effect of the production of active species and the removal of HNCO produced by the decomposition of urea, but it also caused the flue gas became alkaline gas.

Na2CO3作添加剂对工艺的影响是产生活性基元和去除尿素分解生成的HNCO联合作用造成的，但会引起烟气变为碱性。

Purpose: to study the thermal decomposition process and the non isothermal kinetics of adenosine.

目的 ：研究了腺苷的热解过程及非等温动力学。

Meanwhile, based on the MYT orthogonal decomposition, a new method identifying the direction of abnormality of multidimensional abnormal observations is brought forward. This method is robust and appropriate to inverse matrix method, adjoint matrix method and Gram-Schmidt method of MTS.

同时，提出了基于MYT正交分解法的多元系统马氏田口异常值异常方向确定方法，该方法具有很强的稳健性，适用于马氏田口的逆矩阵法、伴随矩阵法和施密特正交化法。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。