The influence of waveform of DC high tension supply on the process of electrostatic separation is theoretically analyzed and discussed; it is also verified by experimentation.

本文从理论上较深入地分析讨论了电源波形对电选过程的影响，从试验上进行了验证。

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Economical operation of hydroelectric plants plays an important role in relieving the tension of domestic power supply and increasing economic profits of hydroelectric plants.

水电厂经济运行的实现对于缓解我国目前电力供应紧张局面以及提高水电厂经济效益很有意义。

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Land for the waste and tension coexist, urban land supply lost of control.

土地浪费和供地紧张并存，城市土地供应失控。

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Demand should outweigh supply going forward and tension in the Middle East leave risk to the upside.

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Meanwhile, expectations and demand have run ahead of supply in recent years, leading to macroeconomic tension.

FORBES: Buy India, Sell China

The issue of drone strikes, along with Pakistan's refusal to re-open Nato supply routes to Afghanistan, has led to increased tension in US-Pakistan relations in recent months.

BBC: US drone 'kills 8' in Pakistan