求翻译：油液分析报告出来后润滑油供应商的解释也十分耐人寻味。根据国家工业闭式齿轮油质量指标(GB5903-1995)规定：黏度指不应低于90。但关于此黏度指数附有标注解释：“MVI(中间基)基础油生产的L-CKB，L-CKD(一等品和合格品)，黏度指数允许不低于70”。供应商据此认为润滑油的黏度指数刚过70，因此润滑油质量没有问题。然而，稍有润滑知识的人应该明白，对于使用在高环境温度，苛刻工作环境下的水泥转窑，如此低的黏度指数就意味着使用中的高油温、高氧化以及高磨损。是什么意思？

The oil analysis report came out after the interpretation of the lubricant supplier is also very interesting. Accordance with the provisions of the national industrial enclosed gear oil quality indicators (gb5903-1995): viscosity refers to should not be less than 90. However, this viscosity index ac

Oil analysis reports showed the lubricant supplier 10 intriguing. According to the National Industrial closed-type gear oil quality indicators (5903 - 1995) GB: viscosity refers to should not be less than 90. However, the viscosity index with a label explained: " MVI (center) of the base oil product

After oil analysis report lubricants suppl