但是目前还停留在实验室阶段，要实现工业化生产，其经济效益如何有待于进一步的实践证明。
Up to now the process remains at the stage in laboratory, it is necessary to put into practice and to proof economic benefits in order to realize industrial production.
工业木质素应用于木材胶粘剂的研究历史很长，但目前仍停留在小试或中试阶段，并没有工业化生产。
The research on applications of industrial lignin to wood adhesives has a long history, but it remains still in laboratory or pilot-plant scale, without industrialization.
文中所述物质既有正处于实验阶段或已工业化生产的产品，也有作者预测的尚未出现的物质。
The things introduced in this paper not only include products in our hfe, but also include some things those are thought by the writer.
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