Tuesday, September 13, 2022
Tuesday, September 13, 2022
Saturday, September 10, 2022
压力容器投入使用后,()进行一次安全检查。A、半年B、一年C、一年半D、两年...
Wednesday, October 19, 2022
Saturday, September 10, 2022
Saturday, September 10, 2022
Tuesday, September 13, 2022
Friday, September 16, 2022
脱水塔回流小会造成塔顶温度上升,塔顶气中乙二醇含量增加。...
Tuesday, September 13, 2022
乙二醇在常温下是无色透明粘稠状液体,属于剧毒物质。()...
Tuesday, September 13, 2022
Saturday, September 10, 2022
煤气、蒸汽、空气等管道的连接应尽量使用的连接方式是()。...
Tuesday, September 13, 2022
除沫器的丝网材料一般为()。A、不锈钢B、铁丝C、铜D、铝...
Wednesday, October 25, 2023
同等反应条件下氮气致稳相对于甲烷致稳更有利于负荷的提高。...
Tuesday, September 13, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
一级、特级“中国石化用火作业许可证”有效时间不超过()小时,二级...
Tuesday, September 13, 2022