·2,447,543篇论文数据，部分数据来源于NoteExpress
Alarm systems - Intrusion detection - Events controller-recorder function integrated in central alarm units or telephone alarm transmitters.
报警系统。侵入检测。事件控制器。与中央报警装置或电话报警送话器相结合的记录功能。
youdao
Debitel, which owns no cables or transmitters, has already become the country's third-largest mobile-telephone operator by buying capacity from other companies and marketing it more shrewdly.
ECONOMIST: German telecoms: Call waiting | The
应用推荐
模块上移
模块下移
不移动