地下通信是发射机、接收机和天线设置在地下工事、隧道或矿井内的无线电通信。它主要有两种类型。一种是通过岩层传递电波，这就要选择电导率适当的岩层或利用高电导率岩层间的“波导”。
网络释义专业释义
... 地下通道 souterrain; 地下通信 underground communication; 地下土壤 underground; ...
基于34个网页-相关网页
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underground communication
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underground communication
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underground communication
·2,447,543篇论文数据，部分数据来源于NoteExpress
双语例句原声例句
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他对这个大的地下通信西海岸之旅。
He was on this big underground communication west coast tour.
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架空电力线路与地下通信线路互阻抗的计算结果验证了论文方法的正确性和高效性。
The validity of the method is proved by calculating the mutual impedance between overhead power lines and underground telecommunication lines.
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地下车库的智能型诱导通风控制系统由多个诱导风机控制器、RS - 485通信网络及PC监控模块组成。
An intelligent inducing ventilating control system of underground garage was composed of many inducing ventilating controllers, RS-485 communication network and PC monitor modules.
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What we don't get here is a sense of whether there really is an alternate secret postal system that serves a sort of underground of private networks.
在这里我们所不明白的是，是否真的存在一个,提供地下的,私密的通信服务的，秘密邮政系统。
应用推荐
$firstVoiceSent
- 来自原声例句