The invention is purposed to solve the problem of which can only be directly used as construction purlin or pitprop.
本发明的目的是为解决现有小径落叶松只能直接用作建筑檩材或坑木的问题。
The invention is purposed to solve the problem of which can only be directly used as construction purlin or pitprop.
本发明的目的是为解决现有小径落叶松只能直接用作建筑檩材或坑木的问题。
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