Saturday, September 17, 2022
Sunday, September 11, 2022
Saturday, September 17, 2022
Sunday, September 11, 2022
Saturday, September 10, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:同一种油品的三种蒸馏方式,它的分离精确度应是()。...
Sunday, September 11, 2022
问题:在换热器的传热量Q及总传热系数K值相同的条件下,采用()操作,可...
Saturday, September 17, 2022
Sunday, September 11, 2022
问题:对于含硫化合物的危害认识中(1)对催化剂活性有不利的影响(2)其...
Thursday, September 15, 2022
Saturday, September 17, 2022
问题:当n=1500~3000转/分,加脂量为轴承箱容积的()A、1/3B、1/2C、2/3D、1/4...
Tuesday, April 9, 2024
Thursday, September 15, 2022
Saturday, September 17, 2022
Sunday, September 11, 2022
问题:油浆固含量高,说明反应(),沉降器旋分工作不好,可适当提高回炼量...
Thursday, September 15, 2022
问题:高低并列式催化裂化装置,在催化剂输送线路上一般不需松动,仅在需要...
Saturday, September 17, 2022
Saturday, September 17, 2022