| 单词 | signaling device |
| 释义 | signaling device (once / 393978 pages) n WORD FAMILY signaling device: signaling devices USAGE EXAMPLESFlotation and a signaling device at a minimum are necessary. Seattle Times(Oct 02, 2016) “As far as communication devices, a radio is not required but a sound signaling device and a visual distress signal should be aboard,” she said. Seattle Times(Jun 01, 2016) The current policy states that "cellphones and other electronic signaling devices shall be kept off or in silent position during instruction." Chicago Tribune(Nov 04, 2015) n a device used to send signals Exp|Hypo|Hyper Liberty Bell the bell of Independence Hall; rung 8 July 1776 to announce the signing of the Declaration of Independence bell a hollow device made of metal that makes a ringing sound when struck buzzera signaling device that makes a buzzing sound foghorna warning device consisting of a horn that generates a loud low tone whistleacoustic device that forces air or steam against an edge or into a cavity and so produces a loud shrill sound boat whistlea whistle on a boat that is sounded as a warning church bella bell in a church tower (usually sounded to summon people to church) cowbella bell hung around the neck of cow so that the cow can be easily located death bell, death knella bell rung to announce a death diaphonea foghorn that makes a signal consisting of two tones dinner bella bell rung to announce that dinner has been served electric bella bell activated by the magnetic effect of an electric current factory whistlea whistle at a factory that is sounded to announce times for starting or stopping work fire bella bell rung to give a fire alarm school bella bell rung to announce beginning or ending of class sheep bella bell hung round the neck of a sheep so that the sheep can be easily located shop bella bell attached to the door of a small shop; warns the proprietor that a customer has entered the shop cascabel, sleigh bella bell attached to a sleigh, or to the harness of a horse that is pulling a sleigh steam whistlea whistle in which the sound is produced by steam; usually attached to a steam boiler tocsin, warning bella bell used to sound an alarm device an instrumentality invented for a particular purpose |
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