• 2022-07-24 问题

    纤维用聚乙烯醇(高模用)优级品醇解度指标() A: ≥99.82% B: ≥99.80% C: ≥99.78% D: ≥99.76%

    纤维用聚乙烯醇(高模用)优级品醇解度指标() A: ≥99.82% B: ≥99.80% C: ≥99.78% D: ≥99.76%

  • 2022-07-02 问题

    电除尘器5个电场,40只灰斗,设计除尘效率() A: 99.74%-99.82% B: 99.66%-99.80% C: 99.76%-99.80% D: 99.76%-99.85%

    电除尘器5个电场,40只灰斗,设计除尘效率() A: 99.74%-99.82% B: 99.66%-99.80% C: 99.76%-99.80% D: 99.76%-99.85%

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