Fuel efficiency is maximized due to optimized air handling with two stage turbo charging.

通过两级涡轮增压优化空气处理，燃油效率得以最大化。

This was done in a semi-clean  environment with air handling and cleanliness requirements to prevent contaminants from finding  their way into the pipe.

这是在半清洁环境中完成的，具有空气处理和清洁度要求，以防止污染物进入管道。