当过滤室脏后，其清洗是在原位上进行的。
When the filter room is dirty, cleaning is carried out on its original place.
清洗范围包括过滤室，过滤元件，过滤室与转向阀之间的熔体管道，以及转向阀通道。
The cleaning scope includes filter room, filter sensor, melt pipe between the filter room and deflecting valve, the deflecting valve passage.
在Penrice公司车间的控制室，工人们可以看到晶形在真空鼓过滤器表面凝结。
In the plant’s control room, Penrice’s workers watch crystals form on the outside of a vacuum-drum filter.
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