Armature Winding and Motor Repair: Practical Information and Data Covering Winding and Reconnectig Procedure for Direct and Alternating Current Machin542 stránek19 hodin čteníPohlídat
American Hydroelectric Practice: A Compilation of Useful Data and Information On the Design, Construction and Operation of Hydroelectric Systems, From458 stránek17 hodin čteníPohlídat