Thursday, September 15, 2022
Monday, September 12, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:作业时,氧气瓶和乙炔瓶间距不得少于()。A、5米B、7米C、10米D、12米
Thursday, September 15, 2022
问题:造成空分塔冷箱外部结霜的原因是()。A、冷损小B、冷箱内保温材料充填不实C、液体管线泄漏D、气体管线泄漏
Monday, September 12, 2022
问题:离心泵调节流量一般用()。A、入口阀门B、交通阀门C、止回阀D、出口阀门
Monday, September 12, 2022
Thursday, September 15, 2022
问题:表冷器安全阀水封水来自()。A、循环水B、脱盐水C、锅炉给水D、冷凝液
Thursday, September 15, 2022
问题:在正常生产中,冷凝蒸发器氮侧温度比氧侧温度()。A、高B、相同C、低D、无法比较
Thursday, September 15, 2022
Sunday, March 17, 2024
Saturday, September 17, 2022
Thursday, September 15, 2022
问题:介质在离心式压缩中,使气体得到压缩的部件为()。A、导叶B、叶轮C、蜗壳D、扩压器
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:随着气流压力的增高和比容的减小,压缩机各级中气流的体积流量是()的。A、升高B、不变C、减小
Thursday, September 15, 2022