To ensure that efficiency-enhancing technological improvements reduce fuel use, efficiency gains can be paired with government intervention that reduces demand (e.g. green taxes, cap and trade, or higher emissions standards).
为了确保提高效率的技术改进减少燃料使用，可以将效率提升与减少需求（如绿色税收，上限和贸易或更高排放标准）的政府干预配合使用。