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机械原理是广大工人在生产和技术革新中需要掌握的一门基础知识,根据广大读者的要求,本刊从这期起将连载机械原理知识讲座,以飨读者。
Mechanical principle is the majority of workers in production and technological innovation need to master a basic knowledge, according to the requirements of readers, this issue from this period serial mechanical principle knowledge lectures to readers.