Thursday, February 22, 2024
问题:防止中毒的措施应()和()在有毒区工作应采取措施()、()、()专人督护。
Tuesday, May 7, 2024
Friday, March 29, 2024
问题:造成液氨贮槽超压的原因正确的是()A、合成放氨过气量过大B、氨槽施放气放空开的过大C、氨槽温度过低D、氨槽内液位过低
Friday, December 22, 2023
Tuesday, September 13, 2022
Thursday, March 28, 2024
Tuesday, May 7, 2024
Friday, December 9, 2022
Tuesday, May 23, 2023
Friday, December 22, 2023
Tuesday, May 14, 2024
Saturday, November 18, 2023
Wednesday, April 24, 2024
问题:循环气流量的大小标志着系统负荷的大小和系统生产能力的高低。
Wednesday, April 24, 2024
Wednesday, February 21, 2024
Tuesday, May 7, 2024
问题:正常操作中,若使用阀门调节副线流量时,必须()进行,防止炉温大幅度波动。
Saturday, November 5, 2022
Thursday, March 28, 2024
Sunday, January 29, 2023
问题:()和()混合会产生爆炸性气体。在开车前必须将设备及管道中的空气排放掉。
Wednesday, April 24, 2024