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变压器的零序保护的配置原则是什么?答：(1)中性点直接接地电网的变压器应装设零序(接地)保护作为变压器主保护的后备保护和相邻元件接地短路的后备保护。
2013-12-03 08:06:01
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弄了一点代码出来，放在那也没啥用，不如拿上来 给新手看看，一个任务调度的雏形是什么样子的~~~~~~~~~这些代码没有经过优化， 我只求实现任务切换的功能。
2014-01-17 04:01:15
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Profibus又是什么？与其它串行协议相比，它们的性能如何？适用于哪些应用？
2022-08-15 17:20:02
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一、ilink开发快是什么
ilink为用户提供成熟稳定，可管可控的软硬云通信链路服务系统。
2022-12-10 16:30:02
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operating frequency is selected by an external resistor and is compensated for variations in VIN and can also
2013-10-24 07:08:01
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The system master can also invert the PCA9557 inputs by
writing to the active HIGH polarity inversion
2014-01-18 14:09:01
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The STWD100 circuit also has an enable pin, EN (see Figure 2), which can enable or
disable the
2013-10-22 14:08:06
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JW7805’s low output noise and high PSRR are also friendly to RF systems.
2022-05-06 00:30:02
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The MT7628 also includes a selection of interfaces to support a variety of applications, such as a USB
2022-07-18 16:20:01
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This new edition also includes 300 figures to ease the understanding of this multidisciplinary system
2022-08-27 07:50:02
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GL3520-21
also implements
multiple TT* (Note1) architecture providing dedicated TT* to each downstream
2022-09-15 07:00:02
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In addition, the main control board can also expand the infrared remote control decoding circuit esp8266
2023-09-19 21:40:01
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Fire accidents will not only cause great economic losses and life threats,but also cause the destruction
2023-09-21 09:00:01
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balance based on single chip computer.Not only the overall design scheme of the system is determined,but also
2023-09-29 05:20:02
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finally through the LCD to display the information,in order to meet the needs of users,this design also
2023-09-29 06:50:01
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The data transmission process also has many advantages and can obtain satisfactory results.
2023-10-06 16:50:01
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例如，解决问题的任务是什么？工作过程是什么？现有的条件，已知的数据，对运算的精确和速度方面的要求是什么？设计的硬件结构是否方便编程等等。
2013-10-10 13:36:01
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processing unit,memory,clock circuit and so on are all important components of the computer.These units also
2023-10-15 01:00:01
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他励直流电动机回馈制动时，能量传递关系，电动势平衡方程式及机械特性又是什么情况？
2013-10-12 10:56:01
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答案似乎应该是什么都没有，因为电视机显示的就是它自己，而它自己正在显示的内容也就是它自己……。
2014-01-24 00:25:10
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