Method: Inspect the influence of roller press, roller speed and the water content of extract powder on yield and friability of particle diameter.

方法：考察轧轮压力、轧轮转速和浸膏粉含水量对颗粒得率和颗粒脆碎度的影响。

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Result:Higher ephedrine content was extract by using Suoshi extraction method and the acid water extraction method, which conforms to the industrialization production requirements.

结果：索氏提取法提取和水提取麻黄碱含量较高，适合工业化生产要求。

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At present, the commercial method to extract bitumen from oil sand is Hot Water Extraction Process.

目前国外商业上使用的油砂沥青分离方法是水洗分离。

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Fracking, of course, is the controversial method by which producers extract tight oil and gas a process that uses a concoction of water, sand and chemicals to break those deposits free from the rocks where they rest a mile beneath the ground.

FORBES: California's Clash: Shale Oil or Green Energy