push button for bell [电] 电铃按钮
electric bell push button 电铃按钮
electric bell flat push button 电铃平按钮
bell push-button 电铃按钮 ; 电铃按纽
bell push button [电] 电铃按钮
If you need help, please push the bell-button.
您有事情唤服务员，请按电铃。
Each indoor fire alarm push-buttons shall be equipped with a break-glass push-button and an alarm bell.
每个室内火警按钮都应有一个？？按钮和一个警铃。
Controlling room: it is made up of the optional push button, the sudden switch, the alarm bell push button and the electric lock, controlling up, down and stop of the lift car;
操纵厢：由层楼选择按钮、急停开关、警铃按钮、电气锁组成；控制轿厢的上行、下行和停止。
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