【简答题】
FIC20004流量低的原因，会造成什么后果，如何处理
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答案
原因：（1）S211A(或B)堵。
（2）控制阀FV20004故障。
造成后果：易造成S203堵塞。
处理：（1）使用中的S211堵塞则切换至另一条S211，且S203也需切换。
（3）通过FV20004旁路控制流量，尽快修复FV20004。
解析
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