Sunday, September 11, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:关联指数BMCI值又称芳烃指数,是依据油品最基本的两性质,即()和密度建立起的关联指标。...
Saturday, December 16, 2023
Sunday, September 11, 2022
Sunday, September 11, 2022
Tuesday, September 13, 2022
Sunday, September 11, 2022
问题:加热炉采用()结构的炉衬时,炉墙表面钢板应涂刷耐腐蚀涂料。...
Sunday, September 11, 2022
Saturday, September 10, 2022
问题:关于催化剂失活的原因,下列说法错误的是()。A、催化剂表面产生积炭B、催化剂上金属的沉积C、金属聚集及晶体大小和形态的变化D、催化剂钝化时间过长...
Thursday, September 22, 2022
Tuesday, September 13, 2022
Saturday, September 10, 2022
Tuesday, September 13, 2022
问题:关于加热炉鼓风机的启动步骤,下列步骤正确的是()。...
Tuesday, September 13, 2022
问题:催化剂硫化时,需要就地排放或采样时,应采取的安全措施有()。...
Tuesday, September 13, 2022
Saturday, September 10, 2022
问题:吸收是利用混合气体组分在溶剂中挥发度的差异,以分离其中各气体组分...
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:冷却水、地面水排放系统从环保的角度是如何设置的?...
Tuesday, September 13, 2022