ignition

• 指开始燃烧的过程，或指内燃机等发动机中点燃燃料的装置。

A noun referring to the process of initiating combustion or the mechanism that ignites fuel in an engine, such as in an internal-combustion engine.

1. Combustion initiationB2formaltechnical

   The process of starting to burn or catching fire; the act of causing something to begin combustion.

   点火

   • The ignition of the rocket propellant occurs at the launch pad.
   • Controlled ignition is essential for safe operation of the furnace.
   • The spontaneous ignition of the chemicals caused a small explosion.
   • Proper ignition requires a source of heat and oxygen.

   同义词firinginflammationkindlinglighting

2. Engine ignition systemB2formaltechnical

   The mechanism or device that ignites the fuel-air mixture in an internal-combustion engine to start it.

   点火系统

   • He turned the key in the ignition and the engine roared to life.
   • The car's ignition system includes spark plugs and an ignition coil.
   • A faulty ignition can prevent the engine from starting.
   • She pressed the button for the electronic ignition.

   同义词ignition system

3. Act of setting fireB1formal

   The action of deliberately causing something to catch fire.

   点燃

   • The arsonist was charged with the ignition of the warehouse.
   • The ignition of the campfire required dry kindling and matches.
   • The fire department investigated the ignition point of the blaze.
   • Carelessness led to the accidental ignition of the pile of leaves.

   同义词firingkindlinglighting