generate enough pressure to drive a steam engine
开足蒸汽驱动发动机
(of a project in its early stages) gradually gain more impetus and driving force
（计划的早期）逐渐获得驱动力
his campaign steadily picked up steam.
他的竞选活动稳步地获得越来越多的动力。
(informal)be extremely angry or irritated
(非正式)大发雷霆，非常恼怒
(of a steam locomotive) ready for work, with steam in the boiler
（蒸汽机车）准备工作，准备发动，一切就绪
(informal)(of a person) get rid of pent-up energy or strong emotion
(非正式)发泄被压抑的感情；泄怒
(informal)lose impetus or enthusiasm
(非正式)失去动力；失去热情
a rebellion that had run out of steam.
没了劲的反叛。
(with reference to travel) without assistance from others
（旅行）靠自己的力量
we're going to have to get there under our own steam.
我们必须靠自己的力量到达那里。
(of a machine) being operated by steam
（机器）靠蒸气运行