The new BCSB idea combines the space division switching with the time division switching.

BCSB新颖的构思将空分交换和时分交换体制有机的结合在一起。

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Switching valve division has been using the double pump patented corrosion resistant ceramic leakproof structure to ensure that fluid does not leak slurry drops.

双泵开关阀体采用本司已获专利的耐腐蚀陶瓷防漏结构，确保色浆滴浆不漏。

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This paper deals with the system architecture of ST-2 telex switching system and the implementation of Time Division Multiplex Address (TDMA) technique.

本文讨论ST-2用户电报交换机的系统结构以及TDMA技术在交换机中的应用。

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But old style phone regulations often require network operators to maintain and expand obsolete copper wires and TDM (time division multiplexing) switching technologies.

FORBES: "Phone" Is Just an App; Why Regulate It?

The bottom four would play each other home and away in a relegation play-off pool, with the last-placed team after six rounds of matches switching divisions with the top team from the third tier, which would be renamed National Division One.

BBC: Championship plan gains support