Thee company's problem are due to a mixture of bad luck and poor management.
该公司的问题出在运气不佳和管理不善两个方面。 。
2
At low temperatures, mixture formation is poor due to the large fuel droplets concerned, and due to the inefficient mixing of the fuel with the air drawn in by the engine.
低温时，燃油黏度和密度增大，且发动机所吸入的空气无法与燃油充分混合，从而影响油气混和气的形成。
3
Results show that the photocatalyst immobilized on concrete exhibits excellent photocatalysis, while the photocatalysis of bituminous mixture is poor.