The vacuum system of the wet end of a papermachine could be a centralized system or some individual systems for the vacuum points.
造纸机湿段
系统可以是:总的系统或各
独立的系统。
The vacuum system of the wet end of a papermachine could be a centralized system or some individual systems for the vacuum points.
造纸机湿段系统可以是:总的系统或各独立的系统。
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