["에드워드 CDX 단위에 대한 진공 泵问题",
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"진공 泵由于工艺波动有一段时间带液严重，现在发现以前的真空变为-3左右，入口加入冲洗液后可以达到-65左右而且在-65到-85之间波动波动频繁电流正常无杂音机筒与转子间隙正常求助原因"
"건식 로드 진공 泵“-65에서 -85 사이에서 波动频繁 波动频繁电流正常无杂音机筒与转子间隙正常”“电流正常”=负载正常=机器基本无故障=波动来自系统；鉴定完毕"
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