查询词典 by comparison to

According to the results of comparison between these methods of spectrum evaluation, a new method of power spectrum evaluation of welding arc sound is advanced by means of association of wavelet packet analysis with the Welch average method .

对试验系统采集到的焊接电弧声进行了小波包多层分解，并利用周期图法、Welch 平均法及AR模型法，对各频段信号进行功率谱估计。根据不同谱估计方法的对比结果，提出小波包分解结合Welch 平均法对焊接电弧声进行功率谱估计的新方法。通过对几种规范与飞溅率下的电弧声功率谱的初步分析，发现其功率谱分布具有一定的规律性，并且不同频段谱峰值及其对应频率与焊接飞溅具有相关

By the comparison of electronic spectrum and Z-scan of different substituted MPc and MNc, the peripheral substituted MNc had better nonlinear optical properties. It provided a new method to the improvement of the performance of reverse saturable absorption of the laser protective materials.

对不同金属轴向取代的萘酞菁化合物的电子光谱和Z-扫描进行了横向比较，并对相同取代基、金属轴向取代的酞菁化合物和萘酞菁化合物进行了纵向比较，发现周围取代的金属萘酞菁化合物具有较好的非线性光学性能，为提高材料的反饱和吸收性能提供了一种新的途径。

Rties of the system are researched by using the comparison theorem of impulsive ordinary differential equations and using the solutions of dominating inpulsive ordinary differential equation to control and estimate the solutions of the system.

利用脉冲常微分方程的比较定理以及利用相应的脉冲常微分方程的解控制和估计所讨论模型的解，研究了系统模型的解的渐近性质。

In comparison with traditional pipeline FFT, the complex multiplication was implemented by shifting and addition operations in order to eliminate multiplication unit and coefficient ROM.

与传统的流水线FFT比较，该模块中的复数乘法运算全部采用移位相加操作完成，因而消除了乘法器及旋转因子ROM的使用，降低了功耗。

We search on the courses of conjunctional grammaticalization by means of the theory of grammaticalization and methods with semantics. Then we differentiate and analyze the difference of grammatical function of synonymous conjunctions through comparison and try to give some explain in diachronic aspect. Finally we probe the laws of conjunctional grammaticalization and ways.

个案分析方面，我们运用语法化理论和方法，结合语义学、认知心理学等理论思想，从句法结构、语义变化分析的方面入手，将共时描写与历时分析相结合，试图探寻连词的语法化过程，通过比较法辨析相近连词的语法功能的差别，并试着从历史演变的角度给出解释，最后对连词演变的机制和规律进行初步归纳和总结。

By analyzing the characteristics of the extracelluar domain of YWK-II antigen, a segment of 127AA which was just connected with the trasmembrane domain was found to be with high divergence in comparison with APP.

分析YWK-II抗原胞外区序列特征后发现，其有一个紧接于跨膜区的127个AA残基区域与APP无显著同源性。

The structure feature of the sensor was described in comparison with the classical Stewart platform-based six-component force sensor.By using the finite element method,the elastic dynamics theoretical model of the sensor was established based on the conditions of displacement consistency and force balance.According to this model,the numerical analysis was carried out,and the variety relationship curves between the natural frequencies and the structural parameters are plotted.

描述了该传感器相对于经典Stewart平台六维力传感器所具有的结构特点；利用有限元法，采用位移协调和力平衡条件建立了传感器弹性动力学理论模型，依此模型进行数值分析，绘制了固有频率与各结构参数间变化关系曲线；并利用ANSYS软件建立了传感器有限元模型，进行了振动模态分析，得到其固有频率和振型。

At first, this paper analyzes equity ownership structure of corporation from China to the overseas with the comparison by crosswise.

最后，本文提出了上市公司股权结构的优化措施，并就国有股减持、QFII制度等问题作了进一步的分析与研究。

Chapters four, five and six are supposed to be the cynosure in this thesis. In chapter four, a general description of the development of equivalence theory is presented. In comparison with the equivalence theories presented by Jacobson and Catford, the author elaborates on Nida's equivalence theory, especially the essence of his functional equivalence theory.

第四，五，六章是本论文的核心部分，在第四章，作者描述了对等理论的发展和演变，并详细介绍了奈达的翻译对等理论，尤其是功能对等理论，为全文做了理论铺垫。

Head-to-head combat pales in comparison with the deadliness of the nuclear bombings by America of Hiroshima and Nagasaki, which claimed 140,000 and 85,000 lives.

然而，肉搏战与美国的核攻击却微不足道——美国对日本广岛与长崎的核弹轰击分别造成了140，000人与85，000人的死亡。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。