机读格式显示(MARC)
- 100 __ |a 19970620d1952 em y0chiy50 ea
- 200 1_ |a 功率因数与节约用电 |A Gong Lu^ Yin Shu Yu Jie Yue Yong Dian |f 毛启爽等编
- 210 __ |a 上海 |c 电世界出版社 |d 1952
- 701 _0 |a 毛启爽 |A Mao Qi Shuang |4 编
- 801 _0 |a CN |b NLC |c 20130420
- 905 __ |a DTDXMTGCXY |d TM933.3/M1