• Theoretical calculation and discussion are presented on the dynamic characteristics of main frame of sugarcane cleaner using finite element method.

    利用有限元分析方法甘蔗剥叶机机架动态特性进行了理论计算探讨

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  • Negative ion is called "longevity element", which is a natural cleaner of the air and vitamin in the air.

    负离子称为“长寿”,空气中的自然清洁白器空气中的维他命

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  • Negative ion is called "longevity element", which is a natural cleaner of the air and vitamin in the air.

    负离子称为“长寿”,空气中的自然清洁白器空气中的维他命

    youdao

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