00403nam a22001577a 4500003000700000005001700007008004100024082001700065100004500082245003100127250001100158260003400169300000800203490002900211650000500240MPLRDC20220104144504.0210129b           ||||| |||| 00| 0 eng d  a448.23 WLGJ   a沃洛格金著, 周维金, 何毓芝译  a高频加热用变压器c  a初版  ab科学技术出版社c1957  b平  a高频热处理丛书; 7  a