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QINGHUA SCIENCE & EDUCATION EQUIPMENT CO.,LTD.
QINGHUA ELECTRONIC INSTRUMENT CO.,LTD.

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    Physiology
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    Ningbo Qinghua Science & Education Equipment Co.,Ltd. is the member of the teaching apparatus line association , being subordinate to the National Education Ministry , and the leading enterprise in ZheJiang teaching apparatus . 

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    Selection knowledge of quality ph meter digital
    Common quality ph meter digital, also called online acidity meter, is used to measure the content of hydrogen ions in the medium to judge the pH value of the measured solution.
    Two installation and maintenance methods of quality ph meter digital
    The quality ph meter digital can be installed in two ways: flow-through and immersion.

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