释义 |
WordReference Random House Unabridged Dictionary of American English © 2024specif′ic im′pulse, [Rocketry.]- Rocketrya measure, usually in seconds, of the efficiency with which a rocket engine utilizes its propellants, equal to the number of pounds of thrust produced per pound of propellant burned per second.
- Rocketrythe specific impulse that a given combination of propellants would produce in an ideal rocket engine providing complete combustion, no friction losses, and no lateral expansion of the exhaust.
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