长途传输选择器 [通信] toll transmission selector
The air-pollution in many urban cities was not only from local pollution sources,but also from the long-range transport out of the cities.
我国各地区、各城市的大气污染不仅都来自于本地污染源，同时也都来自于外地沙尘及污染源的长途传输。
参考来源 - 中亚地区沙尘气溶胶的理化特性、来源、长途传输及其对全球变化的可能影响·2,447,543篇论文数据，部分数据来源于NoteExpress
高锟发现，光信号可通过玻璃光纤进行长途传输。
Mister Kao discovered how to transmit, or send, light signals over long distances through optical glass fibers.
因为地球是圆的，它是不可能通过直接发送长途传输的电视直播。
Because the earth is round, it is impossible to send live television by direct transmission over a long distance.
在广西电信长途传输局的各项日常工作中，光缆维护无疑是核心工作。
In daily management works of the GuangXi Telecom Transmission Bureau, the optical cable maintenance is the core work doubtless.
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