Wednesday, January 24, 2024
Tuesday, December 26, 2023
Sunday, December 4, 2022
Saturday, September 10, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Wednesday, January 24, 2024
问题:在DOX反应部分,从01单元来的()溶液与T-318来的纯净乙二醇按一定的()分别送到DOX反应器(R-310)中反应生成()溶液。...
Saturday, February 10, 2024
Saturday, February 10, 2024
Saturday, September 10, 2022
Tuesday, December 26, 2023
Wednesday, January 3, 2024
Monday, May 22, 2023
Saturday, February 10, 2024
问题:化工生产中,精馏塔的最适宜回流比是最小回流比的()倍。A、1.5~2.5B、1.1~2C、2~2.5...
Thursday, May 9, 2024
Saturday, July 22, 2023
Wednesday, January 3, 2024
Saturday, February 10, 2024
问题:二氧五环是由()和()在催化剂()作用下反应生成。...
Monday, May 15, 2023
Tuesday, January 2, 2024