The paper intrduces the exchange CENTREX, dispatching equipment and the com-bination of them, and puts forward the methods of improving coalmining communication capabili-ty.
将交换
CENTREX功能用于煤矿调
,
而提高煤矿通信的综合能力。
The paper intrduces the exchange CENTREX, dispatching equipment and the com-bination of them, and puts forward the methods of improving coalmining communication capabili-ty.
将交换CENTREX功能用于煤矿调,而提高煤矿通信的综合能力。
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