lock on

verrouiller une cible, accrocher une cible

Repérer une cible et suivre automatiquement sa position, en parlant d’un système de suivi.

En anglais simple : If a tracking system does this, it finds a target and keeps following its position automatically.

• The tracking system has locked on.
• The missile locked on to the approaching plane.
• Can the sensor lock on in thick fog?

Comment l'utiliser : lock on to a target (The radar locked on to the aircraft.)

Synonymes : acquire a target

Expressions courantes : lock on automatically, lock on to something, lock on successfully

verrouiller un missile sur une cible

Faire repérer une cible à un missile pour qu’il suive automatiquement sa position.

En anglais simple : To make a missile find a target and automatically follow its position.

• The pilot locked on a missile.
• She locked the missile on to the moving target.
• The operator must lock on the missile before firing.

Comment l'utiliser : lock a missile on to a target (The pilot locked a missile on to the enemy aircraft.)

Synonymes : target

Expressions courantes : lock on a missile, lock on before firing

s'attacher en signe de protestation

S’attacher à un objet ou à une personne pendant une manifestation pour empêcher qu’on vous déloge facilement.

En anglais simple : To attach yourself to an object or another person during a protest so you cannot easily be removed.

• Several protesters locked on outside the factory.
• They locked on to a fence to delay construction.
• Police tried to remove activists who had locked on together.

Comment l'utiliser : lock on to something (The protesters locked on to the entrance gates.)

Synonymes : chain oneself

Expressions courantes : lock on together, lock on to something, protesters lock on