The tests of curing condition, resistance to medium and hydrothermal ageing showed that the J-200-1D adhesive has excellent processing properties and resistance to weathering.
通过进一步对胶粘剂的固化条件、耐介质性能及耐湿热老化性能的考查,说明J -200- 1D胶粘剂具有优异的工艺性能及耐候性能。
In the hydrothermal reaction system of acid-treated stellerite-NaOH-NaAlO2-H2O, the ageing of the reaction mixture in room temperature is the key for the preparation of pure X-zeolite.
酸处理红辉沸石-氢氧化钠-铝酸钠-水的水热反应体系中,反应混合物的室温陈化是制备纯x型沸石的关键。
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