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Adaptive filter can adjust its coefficients automatically to minimize the mean-square error between its output and that of an unknown input, unnecessary to know the autocorrelation functions of signal and noise in advance, hence it can realize linearly optimum filtering.

自适应滤波器可以不必事先给定信号及噪声的自相关函数，它可以利用前一时刻已获得的滤波器参数自动地调节现时刻的滤波器参数使得滤波器输出和未知的输入之间的均方误差最小化，从而它可以实现最优滤波。

The objective of design optimization for the current loop is to maximize the cross-over frequency. The results show the stability is improved and the capability of suppressing the switching noise is far better than the original. The objective of design optimization for the voltage loop is to minimize the gain of the line ripple voltage.As a result the bandwidth minishes obviously and optimization design excelles in restraining the ripple.

主电路以总体积最小为优化目标，优化结果表明电路的体积减少了0.5%；电流环以开环穿越频率最大为目标，优化结果表明电流环的稳定性能得到了改善，开关噪声抑制能力明显优于优化前的；电压环以线纹波电压增益最小为目标，优化结果表明电压环的带宽明显减小，纹波抑制能力远远优于优化前的。

Therefore, in order to alleviate flutter and to minimize forced response, alternative distribution is superior to the others of mistuning.

因此从抑制颤振和又不导致强迫响应过分增大的角度来看，交叉错频分布为一种较好的错频分布方案。

If message traffic is heavy, the connection consumer can load each server session with multiple messages to minimize thread context switching.

如果消息负载过重，则连接消费者能在每个服务器会话装载多条消息以此减少线程环境切换。----------会话是一个用于收发消息的单线程上下文环境。

A new study idea that makes the occupant injury prevention research and CAD/CAE technology on an integrate mathematical model by means of feature theories and feature design technologies was brought, and it is maybe useful if we study automobile passive safety on a new view of point.The conclusions of this thesis included that what are the main factors of airbag-related injuries and the preventive measures, based on the research of the relationships between injury parameters, such as HIC, chest acceleration, neck force, neck moment, femur axial force etc, and impact speed, belt-use, occupant size (50th and 5th), sitting position and so on. The thesis evaluated whether the effectiveness of the airbag can be increased by making the airbag adaptive to the crash conditions, and points out that the size of the ventilation hole has the dominating influence on the performance of the airbag and is a key factor for intelligent airbag, multi-stage and lower-power inflator can cost effectively minimize the risk of injury to occupants from crashes. It is important for the researchers of intelligent airbag to keep the small size unbelted occupants in focus and it is necessary to study deeply the influence of airbag fold patterns and the extremity out-of-position situation. These topics are important in the study of occupant injury prevention and vehicle safety design.

论文研究得出产生气囊损伤的主要原因和防护措施；在研究汽车碰撞速度、安全带使用情况、乘员的体型5~(th和50~、乘员乘坐的位置等不同事故条件作用下，乘员的头部、颈部、胸部和腿部损伤参数变化规律的基础上，论文从能量因素出发，深入研究了安全气囊卸载能力、气体发生器产气能力和气囊折叠对乘员损伤参数的影响，指出起卸载作用的排气孔其截面积是智能型安全气囊最重要的控制参数之一，以及采用降能展开或二次充气气囊有助于提高汽车安全防护性等重要结论；论文在参数分析的基严内容提要2 础上得出的智能型安全气囊应以不佩戴安全带的5乘员作为主要防护目标进行研究、有必要深入研究气囊折叠形式和司机处于极端离位状况时对损伤参数的影响等结论，对深入进行汽车乘员碰撞损伤研究和汽车安全性设计都具有重要的理论和工程实际意义。

When used with the specified antenna, this can streamline the certification process, reducing costs and timescales, and also minimize production test effort.

当使用指定的天线，这可以简化认证过程，降低成本和时间，还最大限度地减少生产测试的努力。

While stressing the market's fundamental role in development, we should also recognize that the government should play the role of a night watcher to maintain order, property rights and social stability, as well as institute strategies for economic development, provide public services, encourage competition, prevent monopoly, minimize negative external economic effects, promote fair distribution, alleviate and decrease poverty, and so on.

在强调市场发展中的基础性作用的同时，也应认识到，政府除了要充当守夜人维持秩序、产权和社会安定外，还应该担任制定经济发展战略、提供公共品、鼓励竞争、防止自然垄断、减轻负外部经济效应、促进公平分配、扶贫减贫等诸多角色。

The use of sunscreens is aimed to minimize the damage of ultraviolet to skin, so as to slow down the process of skin photoaging.

防晒剂使用的目的是将紫外线辐射对皮肤的损害减少到最小，从而减缓皮肤光老化的过程。

Sueding rollers cross reciprocally and move in the axial direction to minimize the lengthwise streaky.

磨辊互相交叉，轴向游动，可减少纵向条状疵点。

Finally, according to the characteristics of wind loads on the roof, an aerodynamic solution to minimize the peak suctions by venting the leading edges and the corners of the roof is recommended.

用频域相干分析法间接地证实了锥形涡的存在，并指出它是造成此类结构角区附近负压显著偏大的主要原因。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？