例如，锯木场从伐木人那里买来树木，在其加工过程中将这些木头与其他来源的输入，如人工及锯条等混合在一起。
For example, the sawmill purchases logs from the tree harvester and combines them in its manufacturing process with inputs such as labor and saw blades from other sources.
前言： 研究了以锯木屑、纸张和塑料的热解物为原料制备中孔活性炭过程中塑料热解物所起的作用。
The role of plastic pyrolysis products (PPP) in the preparation of activated carbon from three typical municipal solid organic wastes (MSOWs: sawdust, paper and plastic) was investigated.
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