柯林斯詞典potential energy 1. N the energy of a body or system as a result of its position in an electric, magnetic, or gravitational field. It is measured in joules (SI units), electronvolts, ergs, etc 位能; 勢能 ( symbol: , symbol: V, symbol: U, symbol: φ abbr: PE) 返回 potential energy劍橋詞典the energy stored by something because of its position (as when an object is raised ), because of its condition (as when something is pulled or pushed out of shape ), or in chemical form (as in fuel or an electric battery ) 勢能（物理學上，某物因位置（如被陞高）、狀態(tài)（如被拉伸或擠壓）或化學上（如燃料或電池）所貯藏的能量） 返回 potential energy