知识贝壳
知识贝壳
所属栏目：水轮机与水泵专业英语
Two main categories of turbomachines are identified: firstly, those absorb power toincrease the fluid pressure or head (fans, compressors, and pumps); secondly, those producepower by expanding fluid to a lower pressure or head (wind, hydraulic, steam, and ......（本文共 897 字 , 6 张图） [阅读本文] >>