精密陶瓷柱塞同心度的宽容，试压泵不仅增加了柱塞磨损性，空调泵而且提高密封寿命。
Precise tolerance of concentricity for ceramic plunger, not only increase the abrasion-resistance of plunger but also increase seals life.
通过实验得出了柱塞偶件磨损对喷油泵供油特性的影响规律。
The effects of the wear of plunger pair on delivery fuel characteristic of fuel injection pump is investigated.
应及时更换已磨损的柱塞及出油阀偶件。
Should be the timely replacement of worn and out of the plunger valve coupled parts.
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