ISBN: 9787517052050 - 大中型灌排泵站节能运行技术研究 (1 resultados)

paperback. Condición: New. Paperback. Pub Date: 2017-02-01 Pages: 211 Language: Chinese Publisher: China water conservancy and hydropower press the energy-saving operation of large and medium-sized irrigation and drainage pumping station technology research in the large and medium-sized irrigation and drainage pumping station renovation and run efficiently key technology and equipment. on the basis of research. analyzed our country large and medium-sized irrigation and drainage pumping station renovation and the safe a.…