Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:聚合釜出现爆聚倾向在DCS不能判断出聚合釜爆聚()。...
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:生产H-1158和S-2100中为什么要加入EML?...
Tuesday, June 13, 2023
Tuesday, September 13, 2022
问题:以轻柴油为裂解原料得到乙烯、丙烯,若柴油通入量为12t/h,产品...
Saturday, September 10, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:在正常运行中发现脱水机振动较大应该()。A、立即停止进料B、更换脱水机C、先增大进料量以观后效D、先减少进料量,再观察...
Saturday, September 30, 2023
问题:在应用软件PowerPoint中播放演示文稿的同时,单击鼠标右键...
Tuesday, September 13, 2022
问题:下列选项中,属于技术改造的是()。A、原设计系统的恢复的项目B、旧设备更新的项目C、工艺系统流程变化的项目D、新设备的更新项目...
Sunday, October 9, 2022
问题:目前,比较流行的数据模型有三种,下列不属于这三种的是()结构模型。A、层次B、网状C、关系D、星型...
Wednesday, November 29, 2023
问题:设备布置图中,用()线来表示设备安装基础。A、细实B、粗实C、虚D、点划...
Saturday, May 11, 2024
Tuesday, September 13, 2022
问题:丁二烯罐及其换热器清理方法有()。A、还原法B、分解法C、氧化法D、蒸汽蒸煮法...
Friday, March 8, 2024
Tuesday, September 13, 2022
Tuesday, September 13, 2022