共 50 条
- [21] GUIDE TO SUBSTATION GROUNDING AND BONDING FOR MINE POWER SYSTEMS. Information Circular - United States, Bureau of Mines, 1980, (8835):
- [27] Dipyrylene and the bonding conditions in pyron-ring systems. BERICHTE DER DEUTSCHEN CHEMISCHEN GESELLSCHAFT, 1924, 57 : 1903 - 1911