| 单词 | propellant |
| 释义 | propellant (once / 52068 pages) nadj A propellant is a force or substance that drives something else forward. Your model rocket needs a propellant, or a fuel to push it into the air. You might use something as simple as vinegar and baking soda. Space rockets use solid or liquid propellants, or fuel. Propellant derives from the word propel, which means to drive something forward with force. A propellant can be fuel, or the explosive charge that pushes a bullet out of a gun. Gases used to propel can be called "propellant gases" and might be stored in a "propellant tank." Note that some dictionaries accept the variant spelling propellent. WORD FAMILYpropellant: propellants+/propel: propellant, propelled, propellent, propeller, propelling, propellor, propels, propulsion, propulsive/propelled: self-propelled/propellent: propellents/propeller: propellers/propelling: self-propelling/propellor: propellors/propulsion: propulsions/propulsive: propulsively USAGE EXAMPLESMost of the effort expended in a rocket launch is therefore directed towards lifting propellant rather than payload. Economist(Nov 24, 2016) But apparently the propellant got so cold it turned solid, Musk said, without elaborating on how exactly that could lead to an explosion. Washington Post(Nov 08, 2016) The irregular shape of the crater suggests that the fuel tanks, containing hydrazine propellant, may have exploded, throwing up debris. The Guardian(Oct 27, 2016) 1n any substance that propels Syn|Hypo|Hyper propellent rocket fuel, rocket propellant, rocket propellent an explosive charge that propels a rocket compressed gasgas at a high pressure that can be used as a propellant compressed airair at a pressure greater than that of the atmosphere substance a particular kind or species of matter with uniform properties 2adj tending to or capable of propelling propellant fuel for submarines Syn propellent, propelling, propulsive dynamic, dynamical characterized by action or forcefulness or force of personality |
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