共 50 条
- [23] Supply, demand and prices INTERNATIONAL GAS ENGINEERING AND MANAGEMENT, 2007, 47 (06): : 18 - 21
- [24] PHOSPHATE ROCK - WORLD OUTPUT INCREASES, PRICES WEAKEN AND COMPETITION INTENSIFIES E&MJ-ENGINEERING AND MINING JOURNAL, 1988, 189 (04): : 66 - 67
- [25] U.S. pulp spot market prices decline $30/tonne as Asian export demand falls Pulp and Paper Week, 2003, 25 (25): : 3 - 4