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The principle of the back electromotive force detection method is analyzed. The detection circuit is designed, and the problems of its application and solutions are studied in detail. This will improve the practical use.

为此本文在分析了无刷直流电动机反电动势检测方法的原理后设计了反电动势检测电路，并详细分析了在实际应用中存在问题，给出了解决的方法，为其实际应用奠定了基础。

Back electromotive force was measured by continuous pulse-computer and the influencing factors for back electromotive force and current efficiency were studied in detail.

研究了在SrCl2-SrF2-BaF2的电解质体系中熔盐电解法制备高浓度Al-Sr合金，采用连续脉冲-计算机法测定电解过程的反电动势并且对反电动势和电流效率的影响因素进行了详细的研究。

In this paper, the change of back electromotive force current with the different PWM modes are analyzed in detail on the base of BLDCM model. According to theory and experiment ,ON-PWM type restrains the peak value of back electromotive force current and brings the lest effect to the motor control system.

基于无刷直流电动机的数学模型，分析比较了不同PWM调制方式下反电势电流的变化规律，并通过理论推导和仿真实验证明了当电机系统采用ON-PWM调制方式时，能有效地抑制反电势电流的峰值且对电机控制系统造成的影响最小。

On the base of roundly analyzing and studying the running mode of the sensorless BLDCM, we explain theories and realizable methods of detecting back electromotive force, phase verdict and phase compensation in detail.

在全面分析研究了无位置传感器无刷直流电动机运行方式的基础上，细致阐述了反电势过零检测、相位判断及相位补偿的原理及实现方法，并且为了在较宽的范围内提高BLDCM的调速性能，采用了数字式转速闭环控制。

NET development environment on the back-end database technology and some of the key source code described in detail.

NET旳开发环境对后台数据库关键技术和部分源代码进行了详细说明。

Baconian a word, my experience is: Gu Ge takes content detail seriously, baidu takes whole station theme seriously

归纳一句话，我的体会就是：谷歌重视内容细节，百度重视整站主题

In order for a computer to communicate directly with the Distributed Control System, this paper explains the structure of the INFI 90 type DCS made by the Baily Control Company in America in detail. By means of analyzing its inner agreement on communication, an interface between the INFI 90 type DCS and the computer is designed, which includes the software and hardware.

为了实现微机直接与集散控制系统间通信，详细分析了美国贝利控制公司研制的INFI－90集散控制系统的结构组成，通过剖析该系统的内部通信协议约定，设计了微机与INFI－90集散系统通信接口，它包括硬件和软件两部分，其中软件由Borland C＋＋语言编程实现。

As with the D200 on the previous page the Canon EOS 40D comes to this comparison with a two megapixel (256 vertical lines) deficit, however it does appear to stand its ground a little better (helped somewhat by slightly stronger sharpening)*. The D300 does eke out a little more detail in some areas of the image and there's definitely a feeling of more natural texture response on the Baily's label crop.

在上一页与D200比较过后，接下来比较的是少了2百万画素(256条垂直线)的Canon EOS 40D，不过40D似乎看起来更好一些(某个程度上因为稍强的锐化帮助)。D300在画面上的某些部分呈现了更多的细节而且你一定可以感觉到在"Baily's label"的裁切处质感看起来更为自然。

Matlab low pass, high pass, band-pass filter design are to illustrate in great detail and with examples.

详细说明： Matlab低通，高通，带通滤波器的设计都有，说明很详细，并且带有实例。

"We explained every detail and Madonna herself explained her intentions in the face of the judge and in Banda's presence," Kilembe said.

"我们解释，每一个细节和玛丹娜本人解释她的意图，在面对法官，并在班的存在，" kilembe说。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。