国产三缸泵的齿轮齿面损伤严重，尤其以点蚀现象居多。
There are the various damages on the gear surfaces of triplex pumps made in China, especially, there exist a lot of phenomena of the pit corrosion.
以往点蚀监测只能采用离线的监测手段根据对齿面磨损颗粒的分析做出结论。
It is monitored previously only with off-line methods which are based on the analysis of debris weared.
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