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  • Development History

    2017/08/07

    OverviewHuman beings in order to survive and develop, and continue to fight with nature, and gradually deepen the understanding of the surrounding world, thus mastering the ability to conquer nature, ...

  • Chemical industry nouns

    2017/08/07

    Chemical industry, chemical engineering, chemical technology are referred to as chemical industry. Chemical industries include petrochemicals, agrochemicals, pharmaceuticals, polymers, painochemicals ...

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