LDR 00472nam a2200157zu 4500 008 090205n chi d 100 1 _aGraf, Rudolf F. 245 _aModern Dictionary of Electronics _cGraf, Rudolf F. 260 _604 _aPeking _bRen-min you-dian chu-ban-she _c1982 260 _604 _c1982 504 _a1988/1993 946 _a 947 _a11050 001 IFS950 999 _c272597 _d272597 952 _z11050 _70 _c1 _40 _00 _6V_21100120 _9137259 _yBOOK _11 _ov2110/0120 _d2009-05-14 _aIFS