共 50 条
- [42] Petroleum economics - Issues and strategies of oil and natural gas production. SCANDINAVIAN JOURNAL OF ECONOMICS, 1999, 101 (03): : 489 - 491
- [44] UTILIZATION OF ROUGHAGE NPN AFTER TREATMENT WITH AMMONIA ARCHIV FUR TIERERNAHRUNG-ARCHIVES OF ANIMAL NUTRITION, 1986, 36 (2-3): : 198 - 202
- [45] Results of Introduction of Pressure Treatment into Oil Well Production. Izvestia vyssih ucebnyh zavedenij. Neft i gaz, 1980, (01): : 31 - 34
- [47] Effect of acid treatment on thermal extraction for "hypercoal" production. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2003, 225 : U877 - U877
- [48] PRODUCTION OF AMMONIA-SYNTHESIS GAS BY PURIFICATION AND SHIFT CONVERSION OF GAS PRODUCED FROM COAL CHEMICAL ENGINEER-LONDON, 1980, (353): : 88 - &
- [50] Synthesis gas production: Comparison of gasification with steam reforming for direct reduced iron production. NATURAL GAS CONVERSION V, 1998, 119 : 889 - 894