Application of the cumulation number typed digital clock in electricity powered irrigation and drainage pumping station
1988
Xie Zongli (Changde Prefectural Hydroelectricity Bureau, Hunan (China))
AGROVOC关键词
书目信息
页码
pp. 32-33
其它主题
Electricite; Materiel d'irrigation; Analyse economique; Analisis economico
语言
中国人
注释
1 table
1989-08-15
AGRIS AP