File talk:One-hundred, ninety-three pound nut and bolt, one of 16 used to join sections of the generator shaft of a 75,000 kW generator - Grand Coulee Dam, 1942.jpg

维基共享资源，媒体文件资料库
跳转到导航 跳转到搜索

取自“https://commons.wikimedia.org/w/index.php?title=File_talk:One-hundred,_ninety-three_pound_nut_and_bolt,_one_of_16_used_to_join_sections_of_the_generator_shaft_of_a_75,000_kW_generator_-_Grand_Coulee_Dam,_1942.jpg&oldid=173598360”