fuel efficiency的用法和樣例：
例句
- Mr Obama's new rules will bring together a jumble of efforts by various authorities to regulate vehicle emissions and fuel efficiency.
針對奧巴馬先生的新辦法，太多的當局管理車輛排放和燃料效率時有可能帶來一系列的混亂局面。 - A multistage operation improves the thermal efficiency.
多層操作可以提高熱效率。 - Technical measures for increasing heat efficiency of heaters were introduced.
介紹為提高加熱爐熱效率所採取的技術措施。
