annunciator
n.
通告者；信號器
英語翻譯 Noun:
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an indicator that announces which electrical circuit has been active (as on a telephone switchboard)
造句
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annunciator board
示號器板
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annunciator system
示號器系統
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needle annunciator
指針示號器
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annunciator clock
信號鐘
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annunciator relay
信號繼電器
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annunciator bell
信號鈴
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annunciator panel
信號控制盤
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alarm annunciator
警報信號器
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annunciator jack
示號器塞孔
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annunciator disk
圓盤號碼同
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electronic annunciator
電子信號機
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annunciator drop
號牌
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annunciator alarm
警報信號器
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drop annunciator
吊牌通報器,色盤降落...
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