After the cold war, originally many contradictions which covers for the two-pole system revealed day after day.

冷战结束后，原来为两极体制所掩盖的诸多矛盾日渐显露。

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In this system, each diode is switched to the Model 2400 SourceMeter Instrument through two two-pole switches.

在该系统中，每个二极管通过两个双刀开关切换至2400型源表。

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The Radical party, the non-Peronist pole of a two-party system since 1945, has all but disappeared: its official candidate won just 2% of the vote.

ECONOMIST: Argentina's presidential election