在h-d图上,由空气状态点作等d等线与φ=100%线相交,所对应...
Sunday, September 11, 2022
毛细管与膨胀阀统称节流元件,它把以蒸发器流出的高压制冷剂液体减压...
Thursday, September 15, 2022
Thursday, September 15, 2022
Sunday, September 11, 2022
下列关于活塞式冷水机组的开、关机程序描述正确的是()。...
Tuesday, September 13, 2022
降压起动目的是减小起动电流,但同时使电动机起动转矩减小。()...
Tuesday, September 13, 2022
制冷压缩机的润滑和冷却,使用月牙型内啮合齿轮油泵的特点是()。...
Sunday, September 11, 2022
Tuesday, September 13, 2022
氟利昂制冷系统采用的双级压缩制冷循环形式为()。A、一级节流中间完全冷却式B、二级节流完全中间冷却式C、一级节流中间不完全冷却式D、三级节流完全中间冷却式...
Thursday, August 3, 2023
Sunday, September 11, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Sunday, September 11, 2022
Monday, April 10, 2023
铝、铜、铁、金四种金属具有相似的性质是()A、都是银白色的固体B、有导电性C、能和稀硫酸反应D、通常状况下能与氧气反应...
Friday, March 15, 2024
Tuesday, September 13, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022