单词：extraction yield
extraction yield的用法和样例：
例句
- The results showed that the yield of Danshensu with enzymatic extraction was higher than that with water extraction.结果表明，生物酶法制备丹参素的提取率比水提法制备丹参素的提取率有极大提高。
- The result shows that bio-catalytical oxidation is available to raise the extraction rate of gold.结果表明，生物催化氧化对于提高金的提取率有显著效果。
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By Mil Arcega Washington 25 May 2007 Technology and high gasoline prices are helping to coax hard-to-extract oil from California's oil fields. Production at some of the state's older oil fields is expected to dry up in about 25 years, but Chevron say
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