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(chē)輛排放和燃料效率時(shí)有可能帶來(lái)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采取的技術(shù)措施。
