calling device

基本解釋

Function test of engineer calling device(call device in hospital).
輪機(jī)員呼叫（病室呼叫）裝置試騐。
In order to improve the ringing method of telephone used in power systems, a type of selective calling device using audio frequency has been developed.
爲(wèi)了使電力系統(tǒng)通信設(shè)備的呼叫裝置更加使用方便工作可靠，我們研制了以按鍵電話機(jī)發(fā)出雙音頻呼叫信號(hào)進(jìn)行選擇接收的音頻選號(hào)裝置。
Notice that when the interpreter started, it immediately showed the managed set, without calling create_device or add_device to determine the synchronization mode for the myDomain domain.
注意解釋器啓動(dòng)時(shí)，它立即顯示琯理集，不需要調(diào)用 create_device 或 add_device 來(lái)確定 myDomain 域的同步模式。

This is one of the advantages of being the first to offer built-in hands-free calling on a navigation device.
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The devices work well, but they're expensive and require the person you're calling to have a matching device.
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