要有很高的油膜强度和良好的润滑性能。
Must have the very high oil film strength and the good lubricity.
其润滑性能确保所有运动部件完全地作用，同时其良好的粘温行为使液压系统麻木不仁的温度的波动。
Its lubricating properties ensure that all moving parts function perfectly, whilst its good viscosity-temperature behavior makes the hydraulic System insensitive to temperature fluctuations.
本产品具有优良的机械安全性、氧化安定性、防腐蚀性及良好的极压性，使用寿命长，润滑性能好。
This product has excellent mechanical safety, oxidation stability, corrosion resistance and good extreme pressure and long service life, good lubricating performance.
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