Friday, September 16, 2022
问题:在柴油调合的组分当中,直馏柴油的主要作用为:()。 ...
Friday, September 16, 2022
Friday, September 16, 2022
问题:槽车车型660,字母K,表号范围175~177,限装高度()mm...
Monday, September 12, 2022
问题:离心式压缩机轴承换油指标酸值为()mgKOH/g,残炭为1.0%...
Friday, September 16, 2022
Monday, September 12, 2022
Monday, September 12, 2022
Friday, September 16, 2022
问题:某炼厂油库欲新建一条管道输送97#汽油往甲加油站,要求输油时的...
Friday, September 16, 2022
Friday, September 16, 2022
Monday, September 12, 2022
Tuesday, September 13, 2022
Friday, September 16, 2022
问题:确定油罐的安全高度是根据油品性质、罐壁通气孔和泡沫消防装置,并留...
Friday, September 16, 2022
问题:当相对分子质量相近时,烃类辛烷值的高低排列顺序为()。...
Friday, September 16, 2022
问题:关于码头输油臂动作失灵的故障处理措施,以下说法正确的是()。...
Monday, September 12, 2022
问题:污水中的悬浮物含量是现代石油化工厂污水、水质最常用和最重要的表示...
Monday, September 12, 2022
问题:现行的《中华人民共和国安全生产法》自()起施行。...
Monday, September 12, 2022
Monday, September 12, 2022
Monday, September 12, 2022