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.
将交换机CENTREX功能矿调机,从矿通信的综合能力。
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Saffron has brought jobs and money to an area of Greece that is better known for coalmines and unemployment. A year ago, area saffron producers began exporting to the United States. Now they are looking to China.
藏红花为希腊的一个地区带来了许多就业岗位和收入,而个地区原本是以煤矿和就业率低而出名的。1前,该地区的藏红花生产者开始向美国出口种产品。现在,他将目光投向了国。