specific impulse的用法和樣例：
例句
- Curves of constant specific impulse are traced inside the triangle.
比沖為常數的曲線(xiàn)則畫(huà)在三角形內部。 - In particular, the fuel exhibits a higher specific impulse, a measure of fuel efficiency that describes how much momentum a given weight of propellant can impart.
特別值得一提的是，甲烷的比沖量較高，這個(gè)燃料效率值代表特定重量的推進(jìn)燃料所能產(chǎn)生的動(dòng)量。
