无基础的

The confidence and accuracy of distinct element method simulation model of charging of bell-less top blast furnace are only verified and affirmed by experiment. The experiments of one circle charging and multiple circle charging are made in the test model of bell-less top blast furnace.

从而，以高炉炉料颗粒离散单元法模型为基础，结合计算机实施技术，建立了高炉无钟炉顶布料的离散单元法模拟模型，并将其开发编制成了大型的计算机模拟应用程序BLTDEM，配置了功能齐全的前后处理器，以完善计算机模拟和应用。

In this paper, a shunt APF topology with cascade multilevel converter based on Carrier Phase Shifted PWM is presented. The systematic analysis of the harmonic and reactive power detection, AC side and DC side control, system parameter design and so on is done. The simulation study is carried out.imulation shows the APF system is of fast dynamic response and good compensation. Theory analysis and experimental system is feasible..

因此，本文将二者结合起来，提出了基于载波相移PWM技术的级联型多电平变流器并联APF系统的电路拓扑结构，并在谐波及无功检测、交直流控制策略和系统参数设计等方面进行了系统的分析，在此基础上进行了仿真研究。

Based on elastic theory, in this paper cast-in-situ RC hollow flat slab is converted to orthotropic plates by the pseudo-plates theory and the equilibrium equation is built.

本文在经典弹性薄板理论的基础上，通过拟板法将双向空心板等效为正交各向异性的实心板，建立无梁空心楼板的平衡方程。

The transcription of hsp70 was detected in the major tissues of hepatopancreas, muscles, eyestalks under both normal and heat shocked conditions .The mRNA level was increased after the animals were heat shocked in the 3 tissues.

因此本文所克隆的中国对虾hsp70是一种无明显组织特异性的组成性表达的基因，其转录表达能被某些应激进一步诱导，使转录水平在本底基础上提高。

To detect the harmonic and reactive power current of four-phase transmission system, the current detection method for four-phase transmission system is presented based on FBD method, which is on the basis of improving the FBD method definitions.

为了检测四相输电系统中的谐波和无功电流，在进一步完善FBD法定义的基础上，提出了一种基于FBD法的四相输电系统电流检测方法。

The author made a simulation model in Matlab/Simulink, and did simulation in several conditions such as no load, integrating with power grid, independently modulation of the active and reactive power and capture of the maximum wind power. The simulation results show that analysis is right and have very important guidance signification on experimental systems.

在此基础上，以Matlab/Simulink为工具，建立了系统仿真模型，进行了发电机空载运行、并网、有功、无功功率独立调节、最大风能捕获运行等工况的仿真研究，仿真结果证明理论分析正确，对系统的实验研究具有一定的理论指导意义。

On the basis of phase noise analysis, the passive devices including inductors and varactors in the VCO and thecircuit structure are optimized.

在认真分析了产生相位噪声原因的基础上，对无源器件——电感和变容管，及振荡器的电路结构进行了优化设计，并利用0.18μm CMOS工艺实现了5 GHz频段的压控振荡器。

Through the analysis of the sealing structure for runner blade of Kaplan turbine in the world,based on the corresponding test,a new type sealing that with several layer "V" shape sealings and without spring ring is introduced.

通过对国内外转桨式水轮机各种叶片密封结构的分析，以针对性的试验为基础，推出了新的无弹簧多层&V&型密封。

Based on the introduction of the theory of the polymer solutions, the mechanisms of DNA separation by the capillary electrophoresis in non-gel sieving matrices are reviewed in this paper, which includes Ogston sieving model, various modified reptation models, transient entanglement coupling mechanisms and its improved mechanisms.

本文在介绍高分子溶液理论的基础上，综述了DNA在毛细管电泳无胶筛分介质中的分离机理，主要包括Ogston筛分模型、各种修正的爬行模型、瞬态缠结偶合机理及其改进机理等。

Group of Experts on the basis of "import and export commodity inspection-free approach" and "country-free post-mortem examination score standards" of the relevant provisions of the content, from technical management, production management, quality management, staff quality, civilized production aspects, such as 5 the contents of 19 serious, rigorous, impartial review.

专家组的基础上&进出口商品免检办法&和&国家无验尸评分标准内容的有关规定，&从技术管理，生产管理，质量管理，员工素质，文明生产方面，如5月19严重，内容严谨，公正的审查。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。