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
统可以是:总的统或各点独立的统。
The vacuum system of the wet end of a papermachine could be a centralized system or some individual systems for the vacuum points.
造纸机湿段统可以是:总的统或各点独立的统。
明：以上例句、词性分类均由互联
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