The hydraulic technique principle is not the new thing.

液压技术原理并不是新东西。

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Degradation of TNT wastewater by the electro - hydraulic discharge plasma technique was investigated.

利用液中放电等离子体技术对TNT模拟废水进行降解研究。

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The method which sensor error is compensated with the artifical neural network algorithms is applied to the hydraulic measurement technique.

论文将基于神经网络算法补偿传感器测量误差的方法，应用到水利测量技术中。

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According to Polish daily Rzeczpospolita, on June 15 Lane Energy of Canada is set to begin drilling for unconventional shale gas deposits using a technique called hydraulic fracturing also known as fracing in northern Poland in the geological formation referred to as the Baltic Depression.

FORBES: Poland: Fracing On The Rise?

In this case, the Times falls far short of that standard in its discussion of the controversy over shale gas and the extraction technique known as hydraulic fracturing, or fracking.

FORBES: New York Times Blunders into Advocacy Role on the Fracking Debate -- Children are the Victims

The technique they developed, called hydraulic fracking, involves drilling 5, 000-9, 000 feet below ground (in the Marcellus shale), and then moving horizontally into the layers of shale rock where the hydrocarbons lie.

FORBES: Shale Leases: Promised Land