问题:平面图上设备平面定位尺寸应以()或()或()为基准线标注定位尺寸...
Saturday, September 10, 2022
Saturday, August 2, 2025
Monday, December 23, 2024
Wednesday, December 14, 2022
问题:仪表的控制符号有图形符号、字母代号和仪表位号。()...
Saturday, August 16, 2025
Wednesday, December 11, 2024
Tuesday, April 1, 2025
Saturday, April 1, 2023
Thursday, October 6, 2022
问题:对存在化学反应的系统进行物料衡算时,有几种方法?分别是什么?...
Sunday, July 7, 2024
Sunday, March 2, 2025
问题:工艺管道及仪表流程图上,管道的标注内容应包括三个组成部分:即()...
Saturday, September 10, 2022
Tuesday, June 17, 2025
问题:真空管线应尽量短,尽量减少弯头和()以降低阻力,达到更高的真空度。...
Monday, December 23, 2024
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Saturday, August 2, 2025
Saturday, August 16, 2025
问题:工艺设计的任务是根据工艺需要,计算并()某种型号设备,以便订货。...
Tuesday, April 1, 2025
Tuesday, September 13, 2022