By selecting material, process and designing of formula, a binder for PP-ink was prepared. Using this resin, the critical technical problem of peeling-off plastics ink is solved.
通过对原材料、工艺路线的选择以及配方的设计和筛选，研制出适用于聚丙烯塑料油墨用的粘连剂，解决了聚丙烯印刷油墨脱落的关键技术难题。
Solving sediment depositing in pipeline key of problem lied in determining non-depositing critical velocity of muddy water delivery in pipeline system and corresponding technical measures.
而解决浑水管道泥沙淤堵问题的关键在于确定其临界不淤流速及与之配套的工程技术措施。
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