目前,工业上使用的C-烷基化反应催化剂主要是质子酸和()。...
Sunday, September 11, 2022
Sunday, September 11, 2022
Saturday, September 17, 2022
Tuesday, September 13, 2022
防火防爆措施应综合考虑,采取全面措施。首先要选用合理的电气设备,...
Sunday, September 11, 2022
硝化温度自动调节、联锁报警装置,一旦温度失控,联锁装置报警并停止...
Saturday, September 17, 2022
对特殊劳动防护用品应建立定期检查制度,不合格的、失效的一律不准使...
Tuesday, September 13, 2022
Saturday, September 17, 2022
Sunday, December 25, 2022
Sunday, September 11, 2022
Tuesday, September 13, 2022
盛装具有腐蚀性介质的容器,底部尽可能不装阀门,腐蚀性液体应从顶部...
Sunday, September 11, 2022
每个防火分区至少应设一个火灾警报装置,其位置宜设在各楼层走道靠近...
Saturday, September 17, 2022
()就是根据事故情景,对事故可能波及范围内的相关人员进行疏散、转...
Sunday, September 11, 2022
Tuesday, September 13, 2022
Wednesday, November 22, 2023
在0℃及101.3KPa压力下,氯化氢在空气中的扩散系数为()c...
Tuesday, September 13, 2022
Thursday, September 15, 2022
Sunday, September 11, 2022
硝化岗位火灾涉及的危险过程,主要是硝化反应过程、()过程。...
Sunday, September 11, 2022