共 50 条
- [21] METHANOL ON A COAL BASIS - OVERVIEW OF AN OLD CHEMICAL RAW-MATERIAL AND A FUTURE ENERGY RAW-MATERIAL .1. PRODUCTION ERDOL & KOHLE ERDGAS PETROCHEMIE, 1983, 36 (01): : 28 - 34
- [30] THE RAW-MATERIAL - PAPER TEXTBOOKS IN THE DEVELOPING WORLD: ECONOMIC AND EDUCATIONAL CHOICES, 1989, : 102 - 112