boosters

n.

a person who backs a politician or a team etc.

同义词：supporterprotagonistchampionadmirerfriend

someone who is an active supporter and advocate

同义词：promoterplugger

a thief who steals goods that are in a store

同义词：shoplifterlifter

an amplifier for restoring the strength of a transmitted signal

同义词：booster amplifierbooster stationrelay linkrelay stationrelay transmitter

the first stage of a multistage rocket

同义词：booster rocketbooster unittakeoff boostertakeoff rocket

an additional dose that makes sure the first dose was effective

同义词：booster dosebooster shotrecall dose

Hepatitis B vaccine -- do we need boosters?
Hepatitis B vaccine–do we need boosters?
Color-safe bleach boosters, compositions and laundry methods employing same
Boosters for driving long onchip interconnects - design issues, interconnect synthesis, and comparison with repeaters
Random classification noise defeats all convex potential boosters
Random classification noise defeats all convex potential boosters
Random classification noise defeats all convex potential boosters
STABLE SKIN CONDITIONING COMPOSITIONS CONTAINING RETINOID BOOSTERS
gammadelta T cells: firefighters or fire boosters in the front lines of inflammatory responses.
Waning immunity to plasma-derived hepatitis B vaccine and the need for boosters 15 years after neonatal vaccination