polyalkyl synthetic lubricant

例句：

1. 1. This polyalkyl synthetic lubricant is highly effective in reducing friction and preventing wear.
   这种多烷基合成润滑油在减少摩擦和防止磨损方面效果显著。
2. 2. The new polyalkyl synthetic lubricant has been shown to improve engine performance and reduce emissions.
   新型多烷基合成润滑油已被证明能提高发动机性能并减少排放。
3. 3. Polyalkyl synthetic lubricants are widely used in industrial applications where high-quality lubrication is required.
   多烷基合成润滑油广泛应用于工业应用中，需要高质量润滑的地方。