如何使用紧急通话器？
介绍了一种机内通话器自动测试仪的硬件设计和软件设计方法；
The hardware and software design of an aircraft interphone auto-tester is introduced in this article;
这种新型的电话答录机有一个通话计数器。
系统内可多方同时通话，且通话不通过扬声器向外广播。
The system can realize multi-user call and the sound may not spread from the speaker.
我发现新手机扬声器在播放音乐与通话方面的音量都有明显提高。
I found the speaker was much louder, for music and for the speakerphone.
通话记录器安装后使用权做好准备。
变压器便可以安全地放入自己的通话资源。
The transformer can then safely add its own calls to that resource.
变压器便可以安全地放入自己的通话资源。
The transformer can then safely add its own calls to that resource.
应用推荐