求翻译：3#发动机磨损状态优于1#和2#机，但是磨损颗粒浓度超出正常水平，特别是铜合金磨损颗粒浓度较高，并伴有少量铝合金擦伤颗粒，表明该发动机轴瓦磨损状态已不正常，目前尚无失效危险。是什么意思？

# 3 engine wear condition is better than # 1 and # 2 machine, but the wear particle concentration exceeded the normal levels, especially the higher concentration of copper alloy wear particles, accompanied by a small amount of aluminum abrasion particles, indicating that the state of the engine bear

3 #engine wear status better than 1# and 2# but wear particle concentration exceeds the normal levels, in particular copper alloy wear particle concentration is high, with a small aluminum particles that scratch the engine bearings are worn status is not normal, and there is no expiration.

The 3# engine attrition condition surpasses 1# and 2# machine, but the attrition pellet density surpasses the normal level, the copper alloy attrition pellet density is specially high, and is accompanied by the few aluminum alloy abrasion pellet, indicated this engine axle bush attrition condition h

3# engine wear condition better than 1# and 2#, but wear particle concentrations exceed normal levels, especially copper-alloy high wear particle concentration, and accompanied by a small amount of aluminum-alloy abrasion particles, indicating that the engine bearing wear is not normal, there is no

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