a push button at an outer door that gives a ringing or buzzing signal when pushed
同义词：doorbellbell
a signaling device that makes a buzzing sound
buzzers例句
Buzzers Buzzers Sniffers, buzzers, toggles and blinkers: dynamics ... Good temperature stability of K 0.5 Na 0.5 NbO 3 based lead-free ceramics and their applications in buzzers Alarm system activated by buzzers Design and Implementation of a Piezoelectric Clutch Mechanism Using Piezoelectric Buzzers Design and Implementation of a Piezoelectric Clutch Mechanism Using Piezoelectric Buzzers Fabrication and characteristics of thin disc piezoelectric transformers based on piezoelectric buzzers with gap circles CROSS COVES, BUZZERS AND GENERAL SORTS OF PRIGS: Juvenile Crime and the Criminal 'Underworld' in the Early Nineteenth Century Cloud database resource calculations optimization based on buzzers and genetic algorithm double-population evolution mechanism
