Monday, December 19, 2022
问题:活塞式压缩机三级排气阀泄漏会引起()A、二级排气压力过高B、二级排气压力降低C、二级排气温度降低D、二级吸气压力降低
Thursday, September 15, 2022
Monday, September 12, 2022
Thursday, September 15, 2022
问题:活塞式压缩机与透平式压缩机相比,其优点是()A、压力范围广B、输出的气体连续C、设备结构简单D、机器转速高
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:齿轮泵适合输送的介质是()A、腐蚀的油类B、含有固体颗粒的液体C、高挥发性、低闪点的液体D、无腐蚀的高粘性液体
Thursday, September 15, 2022
问题:判断活塞式压缩机二级排气出口冷却器泄漏的可能原因正确的是()A、一级排气温度下降B、二级排气温度下降C、二级吸气温度下降D、三级吸气温度下降
Thursday, September 15, 2022
Friday, September 16, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Tuesday, February 20, 2024
问题:一般SS暖管时间为(),HS暖管时间为(),暖管时升压速度为()MPa/min。
Thursday, September 15, 2022
问题:活塞式压缩机单级压缩比以()为宜。A、1.5~2.0B、2.5~3.5C、3.5~5.0D、5.0~6.5
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:排汽温度与冷却水温度的差值超过正常值,但冷却水进、出温差正常,可能原因是()。A、冷凝量太多B、结垢C、水量不足
Sunday, September 11, 2022
Thursday, September 15, 2022
Thursday, August 31, 2023
Friday, September 16, 2022
Wednesday, May 17, 2023