Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 387
ess is, however, apparent rather thanreal when considering the various practical difficulties which areencountered. These difficulties depend upon the high temperature,under which condition the sodium vaporizes and has to be cooledby some suitable method. Such suitable method, however, has notbeen…
Electrical engineering
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