AbstractWith the rapid development of the Internet in modern society,scanning qr code hasbecome the lowest cost of online and offline interconnection network access.While theeconom...

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北京理工大学珠海学院2020届本科生毕业设计Design of automatic detection system of ultrasonic penetrationmethod for water immersion of thin plateAbstractWith social development,there'...

论文摘要ABSTRACTThe thesis introduces a kind of single-pulse-reflection double--ultrasonicsensors distance measurement system design in detail based on the AT89C51SCM.The specific ...

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本科论文AbstractWith the further development of China's coal mining industry today,safe production isthe first element in development.Among them,comprehensive ventilation design fo...

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