问题:电石粒度越小越利于完全反应,所以电石粒度越小越好。...
Thursday, December 28, 2023
Tuesday, January 31, 2023
Sunday, October 29, 2023
问题:分布板压差大幅度波动的原因是()。A、流化气流量大B、分布板上有块料C、流化气量小D、反应负荷大...
Thursday, October 27, 2022
问题:现有20℃的饱和硝酸钾溶液,欲改变其溶质质量分数,下列方法可行的...
Saturday, September 10, 2022
Friday, November 3, 2023
Thursday, September 14, 2023
Saturday, September 10, 2022
问题:转化器拆大盖前,将转化器内温度降至()A、60℃以下B、80℃以下C、100℃以下D、120℃以下...
Thursday, January 25, 2024
Tuesday, February 21, 2023
Sunday, October 29, 2023
Friday, November 3, 2023
问题:清净塔内次氯酸钠有效率必须要有保障1#塔(),2#塔()。A、0.06、0.08B、0.04、0.06C、0.06、0.08D、0.08、0.12...
Tuesday, February 21, 2023
Tuesday, September 13, 2022
问题:氯乙烯聚合包括()等步骤A、加料B、聚合C、脱气D、出料...
Thursday, January 25, 2024
Saturday, September 10, 2022
Tuesday, September 13, 2022
问题:为了测准空气的湿球温度,应将干湿球温度计放在()...
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:干法乙炔发生器反应完的电石渣是干的,可以直接造水泥。...
Friday, July 7, 2023