Saturday, September 10, 2022
问题:鼓泡塔内气体为连续相,液体为分散相,液体返混程度较大。...
Tuesday, September 13, 2022
问题:对于中温一氧化碳变换催化剂,如果遇H2S发生中毒,可采用下列哪种...
Thursday, September 15, 2022
问题:什么叫做溶解度?变换气中气体组份在甲醇中溶解度大小顺序是怎样的?...
Tuesday, September 13, 2022
问题:(CH3CH2)3CH所含的伯、仲、叔碳原子的个数比是()。A、3:3:1B、3:2:3C、6:4:1D、9:6:l...
Wednesday, November 16, 2022
问题:蒸馏过程按蒸馏方式分类可分为简单蒸馏、平衡蒸馏、精馏和特殊精馏。...
Saturday, October 7, 2023
问题:一个静止的敞开式容器中装有1.2m水,已知当地大气压为750mm...
Thursday, September 15, 2022
Saturday, September 10, 2022
Thursday, September 15, 2022
问题:仪表在投入运行前,必须进行仪表的单独校验,正确无误后方能安装到现...
Friday, September 16, 2022
问题:在对峙反应A+B↔C+D中加入催化剂(k1、K<su...
Tuesday, September 13, 2022
Thursday, September 15, 2022
问题:萃取剂的选用,首要考虑的因素是()。A、萃取剂回收的难易B、萃取剂的价格C、萃取剂溶解能力的选择性D、萃取剂稳定性...
Sunday, October 15, 2023
Thursday, September 15, 2022
Thursday, September 15, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:用加热的方法使固体物料中的()汽化而除去的操作称为干燥操作。...
Tuesday, September 13, 2022
问题:下面有关开拓创新要有创造意识和科学思维的论述中错误的是()。...
Thursday, September 15, 2022
问题:影响流体阻力的因素有流动状态、管壁粗糙程度、()和()...
Tuesday, September 13, 2022