achieve optimal overall results的用法和样例：
- The simulated results show that the NMHC emission reduction cannot achieve optimal efficiency to ozone concentration.
- This favorable overall result conceals some variability.
- To achieve optimal results, a strategy for promotion should be worked out, which should cover the tools for promotion as well as the timing and scope of promotional campaigns.
- But the overall result is, as you suggest, the entire industry getting too involved in navel-watching and competitiveness over the wrong values.