Based on building up a model of echo canceller, the convergence of gradient-type stochastic adjustment algorithm of an adaptive filter under the mean-squared error criterion is discussed.
在建立回波抵消器模型的基础上，按最小均方误差准则，导出了自适应滤波器抽头的统计梯度算法和抽头调节的收敛公式。
Sometimes, all that is necessary (in earlier drum-type Brakes) is a minor Brake adjustment to compensate for lining wear.
有时，所要做的仅仅是对制动器稍做调整，以减少衬片磨损。
For hundreds of years, however, the vegetation in any given region may have a different appearance that it will ultimately, due to this type of adjustment.
几百年过后，特定区域的植物最终将因调整方式的不同而呈现出各别的形貌。
The report talks about the principles, structure, accuracy analyses, main technical data, characteristics, adjustment and application of a new type internal focusing device for centring.
本报告介绍了一种新型内调焦对心器的原理、结构、精度分析、主要技术参数、特点、仪器的调整及使用。
To solve the problems of low efficiency and high power consumption and inconvenient parameter adjustment of beam pumping units, a motor-reversing type pumping unit is developed.
为了解决游梁式抽油机效率低、能耗高和调整参数复杂等问题，研制开发了电动机换向智能抽油机。
It is much more effective than a bell jar type for operation such as adjustment of film thickness, exchange of sampler and cleaning.
这是更为有效的比钟罩式操作，如调整薄膜厚度，交流采样和清洁。
The invention is a worm and worm wheel type push adjusting mechanism, which has characteristics of large transmission force, easy adjustment and high adjusting precision.
本发明为蜗轮蜗杆式压下调节机构。其结构的传动力矩大，调节轻便，而 且其调节精度高。
In order to improve the shape adjustment ability of hot strip mills in schedule free rolling, this paper put forward a scheme of the wide hot strip mill type configuration.
为了提高自由规程轧制中热连轧机的板形调节能力，提出了热轧宽带钢的机型配置方案。
Thus a new type of fertility culture is urgently needed to carry on the adjustment, and stabilize the low fertility level and adjust population structure through the integration of fertility culture.
这都急需一种新型的生育文化来进行调节，通过生育文化的整合作用，来稳定低生育水平，调整人口结构。
NSK-I type of controller of the tightening up a screw machine is a new type of the torque controller. It has achieved continuous adjustment to the torque of the controlled motor.
型拧丝机控制器作为一种新型的力矩控制器，实现了对被控电动机力矩的连续调节。
Adjustment of valves clearance for the in-line, V-type and number multi-cylinder engines is able to be completed only by rotating an engine twice and summed up in a pithy formula.
提出了一种利用简单口诀，对直列、V型及奇数多缸发动机，两次调校即可完成其所有气门调校的方法。
A standard type without height adjustment provided with a large mattress platform that can be tilted as you like.
标准型具有可以随意倾斜的大床垫平台，但无高度调节功能。
A new type of hydraulic control switch with circular adjustment for blocking water in oil well is developed.
研制了一种新型液压控制可循环调层的堵水开关。
It is a type of economical aptitude pump unit which usually save energy over 50% than general models with convenient maintenance, simple adjustment, low maintenance charge on the safe side.
该机调参简易、维护方便、安全可靠、维护费用低，与常规抽油机相比节能50%以上，是一种智能型的节能抽油机。
The aim of the invention is to simplify handling of a flow adjustment valve of the aforementioned type.
本发明的目的是简化上述类型的流量调节阀的操作。
This device is a new type of intelligent instrument developed first in our country, with the feature of speaking clear- ly and naturally, stable function, simple fabrication, easy test and adjustment.
它性能稳定，发音清晰自然，制作调试简便，是国内首先开发的智能型仪器的一代新产品。
A voltage adjustment method based on bus-type extended load flow was presented firstly. After that, the deficiency in traditional network power flow matching methods was well analyzed.
首先，分析节点类型扩展潮流计算在节点电压调节问题中的可用性，并提出具体实现方法。
Our company is a combination of frozen, cold storage, gas adjustment activity type or civil type cold room design, production and installation.
公司集冷冻、冷藏、气调活动式或土建式冷库设计、制作、安装于一体。
Our company is a combination of frozen, cold storage, gas adjustment activity type or civil type cold room design, production and installation.
公司集冷冻、冷藏、气调活动式或土建式冷库设计、制作、安装于一体。
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