The method and the condition of separation epoxy ethane from dihydric alcohol are discribed.
介
氧乙烷与二元醇的
离方法和条件。
The method and the condition of separation epoxy ethane from dihydric alcohol are discribed.
介氧乙烷与二元醇的离方法和条件。
The Preparation method of cheap aluminium dihydric phosphate and its application in refractories have been intro-duced.
提供廉价磷酸二氢铝的制备方法，介它在耐火材料中的应用。
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