Nowadays, with the problem of the scarcity of resource and the deterioration of environment, it has been a trend to study and utilize some recyclable natural resources such as cellulose and lignin.

• 在资源紧张,环境逐渐恶化的今天,对大自然给予人类的纤维素、木质素等丰富而宝贵的可再生天然资源予以充分重视并加以研究和利用,已是一种必然趋势。