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木材的可取代性在下降德国材料学家ＳｃｈｕｌｚＨ。分析１９、２０世纪木材利用的结构变化时认为，１８５０年以前，木材利用处于第一阶段，当时木材是不可取代的。１８５０年以后，石油、煤的利用取代了部分木材，为第二阶段。在此阶段，木材又发展了一些新的产品。１８...
The substitutability of wood is declining German materialologist SchulzH. An analysis of the structural changes in timber utilization in the 19th and 20th centuries suggests that timber use was in the first phase before 1850 when wood was irreplaceable. After 1850, the use of petroleum and coal replaced part of the wood for the second phase. At this stage, timber has developed some new products. 18 ...