改进的性能

At least, there are three things needed to do: the improvement of gasoline processing, the study of new additives which can improve the antiknock properties of gasoline, and the quality control on gasoline production.

因此，汽油生产加工工艺的改进，提高汽油抗爆性能的添加剂的研究，以及汽油生产中的质量控制成为亟待解决的重要问题。

Simulation results show that our algorithm enforces the adaptability of differential space-frequency modulation to the time delay expansion.Finally, we give our work to reduce the complexity of multiple symbol differential sphere decoding in differential space-time modulation. Through the modification of the enumeration strategy of the search tree in sphere decoding, we significantly reduce the complexity of detection at the expense of little loss on performance.

理论分析和仿真结果都验证了这种检测算法对长信道时延的适应能力论文最后还对差分空时调制中的多符号检测算法进行了研究，提出了一种降低差分空时调制系统中多符号差分球形译码算法复杂度的方法，通过改进球形译码中搜索树的排序策略，使得系统在牺牲较少性能的基础上大大降低了算法实现的复杂度。

From the two angles of improving instrument enginery and changing music style, the papers analyzed the different touching method for Cembalo, Vienna piano and Britain one. The writer also discussed several representative composers and pianists of the main schools in music history from the end of 18th century to the first half of the 20th as well as their individual touching techniques.

文章从乐器性能的改进及音乐风格的变迁这两个角度，分析了古钢琴、维也纳钢琴、英国钢琴对触键法的不同要求，以及18世纪末到20世纪上半叶，音乐史上几个主要流派中最具代表性的作曲家兼钢琴家在触键技术上的不同特点。

According to the experimental data, it can be seen that the current transformer this paper designed could work reliably. At the range of -40~70 oC, it can work steadily. Furthermore the ratio error and phase error of current transformer could satisfy the state criterion of 0.2 standard. Relative to the tradition electromagnetic current transformers the respond speed and bandwidth are increased greatly. As a result, it is hopeful that the electronic current transducer we designed is practical.

经试验验证，本课题设计的电子式电流互感器工作可靠，在-40~70 oC温度范围内均能稳定工作，而且其比差和相差都满足国标中对 0.2 级电流互感器的要求，其动态响应速度、带宽等性能明显比传统电磁式电流互感器有很大的改进，因此其有望很快进入实用化阶段。

The optimized design for knife disk of a mobile wood chipper was provided in order to improve the cutting performance and decrease the self-weight of the chipper, therefore to further reduce the energy consumption and production cost,and then increase economic efficiency.

介绍了在设计移动式小型卧式枝桠削片机的过程中，对削片机切削性能和自身质量影响较大的刀盘进行优化的情况，为刀盘改进提供一定的理论依据。优化设计后减少了能耗，降低了生产成本。

The results of research offers reliable information to improve the pump performance, and offer some theory to design the screw centrifugal pump.

研究结果对泵性能的改善与改进提供有益的信息，为螺旋离心泵的设计提供了一定的理论依据。

The paper presents a full analysis of the working principle and main technical parameters of high energy screw press, including the advantages and defects which are specially pointed out.

对高能螺旋压力机的工作原理和主要技术参数作了分析，指出其性能的优越性和结构上存在的问题，对该机型的改进和合理使用提供参

Through this online industrial and organizational psychology specialization you will learn leading-edge assessment techniques, leadership and group development theories, conflict management strategies, and other techniques for increasing motivation and improving workplace performance.

通过这个网上工业与组织心理学专业，您将了解到领先的增加和改进工作的动力性能优势的评估技术，领导和集团的发展理论，冲突管理策略，以及其他技术。

The latest research on the refrigerants and improvement of the system configuration in order to bettering the performance and flexibility was reviewed.

简述了喷射式制冷系统的最新研究状况，分析了针对提高性能和适应性而进行的制冷介质、系统结构改进方面的研究成果和发展趋势。

It is a more preferable to simpler frequency criterion, since it takes into account of frequency, vibration mode, damping, s ensor and actuator information. Reduced order model can approximate well the bas i c characteristics of the original system.

该法考虑了可观性向量、模态增益、结构阻尼系数及模态频率，较简单的频率截断法是一个很大的改进，降阶后的模型能很好地近似原系统性能。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。