这就使密封件或盘根被压紧以适应工作条件，并容许根据磨损进行随后的调整。
This enables the seal or packing to be tightened to suit the operating conditions and allows subsequent adjustment to account for wear.
这就使密封件或盘根被压紧以适应工作条件，并容许根据磨损进行随后的调整。
This enables the seal or packing to be tightened to suit the operating conditions and allows subsequent adjustment to account for wear.
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