The inhibitory effect of ginger extract on microorganisms was studied with different methods, which were hydraulic extraction, ethanol extraction, ultrasonic extraction and vapor distillation.

以生姜为材料，研究不同提取方式包括水浴加热浸提法、醇提取法、超声波浸提法和水蒸气蒸馏法对微生物的抑制作用。

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Occurrences and forms of hydraulic fractures in drilling wells are analyzed for extraction of coalbed methane(CBM). The determination basis of dips, strikes and shapes of the fractures are presented.

对钻井水力压裂开采煤层气时，所形成的裂缝产状和形态进行了理论分析。提出了裂缝倾角、走向和形状的确定依据。

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Parts of the anti-fracking movement will never be reconciled to fossil fuel extraction, whether through hydraulic fracturing or conventional drilling.

FORBES: An Investigation Of The Global Anti-Fracking Movement

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

Chevron is also engaged in the exploration and production in neighboring Poland and Romania but has faced opposition from groups who argue that shale gas extraction, which involves hydraulic fracturing (fracking), has severe consequences on the environment.

FORBES: Chevron Digs Deeper Into Eastern Europe For Shale Gas