We must find economical methods for extracting oil from shale.

我们必须找到从页岩中采油的经济方法。

《新英汉大辞典》

Objective: To test different methods for extracting volatile oil from bergamot.

目的：考察不同方法对佛手中挥发油提取的影响。

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Different methods for extracting sericin from cocoon-cooking water and waste water in silk mill were compared.

介绍利用煮茧水及缫丝厂的废液提取丝胶的方法，分析不同方法对丝胶的制取及水溶性的影响。

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The emerging technologies involve different solvents, sorbents and membranes as well as methods for extracting carbon from the solvents and regenerating the solvents for reuse.

FORBES: Still Chasing Clean Coal, US Opens Carbon Capture Lab

The inquiry followed the planning application made by Miller Argent for the reclamation of land which also includes extracting coal by opencast methods.

BBC: NEWS | UK | Wales | South East Wales | Opencast goes before inspector