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萤火虫在哪里
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NightWish431

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Picking Wanting Facing the new century, the new situation to education for all-around development's request, our former literary production education, should discover unceasingly the new question, studies the new situation, accepts the new idea by the new thinking mode and the teaching method guidance writing. How did this article discuss has been able better unifies the classroom instruction and the practice, arrived at the knowledge through the teaching curriculum middle school, how contrasted the work should actually the better utilization theory. Explained collects folk songs the active basic significance, how to hold the key point. The discussion emphatically has collected folk songs the source material and the creation relations, and explains with examples. Elaborated the teaching, to collect folk songs, to create three relations. Statement: “the teaching to collect folk songs provides the rationale, to collect folk songs for the creation provides the basic source material, whether the creation is examines the teaching theory correct key”. Thus the clear expression teaching, has collected folk songs with the creation relations. key word: The practice teaching creation collects folk songs

新形势英文

108 评论(14)

爱我大兴

carry out CPC's train of thought and methods under the new situation.希望能帮到你。

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微笑的可爱多

随着时代的发展,数控技术获得了广泛的应用。数控机床作为精密、高效的加工设备在机械制造和加工业中的应用越来越普遍,特别是单片机数控系统控制装置的机床,由于它的经济性和易操作性,具有很大的发展潜力和市场。文章首先总结了国内外数控技术的发展现状和趋势,在此基础上,系统的分析了所研制数控系统的硬件设计和软件设计,并对各个模块的电路进行了详细设计。这次设计以MCS-51系列单片机对数控机床的控制装置进行设计。本系统是一个典型的经济型数控装置。系统采用8031单片机、恒流斩波驱动、大功率电力电子器件、光电隔离开关构成半闭环数控系统,实现数控机床的位置检测。使用变频调速系统控制主轴电机的运行。本系统具有速度快、精确、方便、可靠性能高、抗干扰能力强等优点,在工商业领域应用地越来越多。

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