Part of the walls are made from clay mixed with pebbles, or stained timber.
部分的墙壁是由粘土混合鹅卵石或染色木材制成的。
Based on the analysis and the characteristics of timber transportation, the mixed transportation model was built with nonstop and secondary transportation.
在分析木材运输过程的基础上，结合木材运输的特点，建立了木材直达、中转混合运输问题的数学模型。
Based on the analysis and the characteristics of timber transportation, the mixed transportation model was built with nonstop and secondary transportation.
在分析木材运输过程的基础上，结合木材运输的特点，建立了木材直达、中转混合运输问题的数学模型。
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