如何建立木材在变载荷下蠕变的数学模型，是木材流变学在理论研究和生产应用中迄今尚未解决的问题。
How to establish creep model of under change loads are unfathomed contents in theory studies and applications of wood rheology.
如何建立木材在变载荷下蠕变的数学模型，是木材流变学在理论研究和生产应用中迄今尚未解决的问题。
How to establish creep model of under change loads are unfathomed contents in theory studies and applications of wood rheology.
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