Saturday, September 17, 2022
问题:三相异步电动机装有三相绕组,在启动时三个绕组在空间上相隔()产生旋转磁场,使电动机启动。...
Friday, September 16, 2022
问题:多选题单位质量制冷剂所转移的热量是由()组成。A吸气热量B过热温度C单位质量制冷量D单位质量压缩功E冷却水热负荷...
Friday, December 8, 2023
问题:多选题室内要维持正压的洁净室是()A电子工厂B胸、脑外科手术室研成果C生物安全实验室D隔离病房E动物实验室。...
Monday, April 10, 2023
问题:单选题冷冻泵启动,确认冷冻水供水压力正常,()启动压缩机。A 过1分钟后B 过5-10分钟后C 过半小时后D 立刻...
Saturday, September 16, 2023
Thursday, September 22, 2022
问题:净化空调系统除了控制室内的温湿度及风速外,还要控制()。...
Thursday, September 22, 2022
问题:填空题利用制冷剂在管道内直接蒸发来冷却管外空气的设备称为()...
Tuesday, December 5, 2023
问题:填空题按活塞式制冷压缩机的空缸布置方式可分为卧式、直立式和()...
Wednesday, February 14, 2024
问题:0.1013Mpa100℃的饱和水,压力不变,当温度升高至120℃时,工质就由饱和水变为()。...
Saturday, September 17, 2022
Thursday, September 22, 2022
问题:单选题下列制冷方法中不属于液体汽化法的是()A 蒸气压缩式制冷B 气体膨胀制冷C 蒸汽喷射制冷D 吸收式制冷...
Tuesday, December 5, 2023
Tuesday, August 8, 2023
问题:多选题洁净室及净化空调系统在运行中要经常注意检查调整(),以维持室内的压力要求。A余压阀B变送器C调节器D执行器E压力传感器...
Saturday, December 23, 2023
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:多选题哪些特殊功能寄存器与定时器/计数器功能有关()。ATMODBTCOMCSBUFDSCONE以上都不是...
Saturday, July 1, 2023
Wednesday, December 27, 2023
Thursday, September 22, 2022
Thursday, September 22, 2022