extraction n. 1.抽出,拔出。 2.【化學(xué)】提取(法);萃取(法);回收物,提出物;精煉。 3.精選,摘要。 4.血統(tǒng),家世,出身。 5.【數(shù)學(xué)】開方,求根。 spirit of the first extraction 原汁酒。 a man of foreign extraction 外國(guó)(血統(tǒng)的)人。 extractions from a book 一本書的內(nèi)容摘錄。 an extraction of 81 percent 百分之八十一的出粉率,八一粉。 the extraction of root 【數(shù)學(xué)】開方法,求根法。
The mathematical analysis and extraction test of the aqueous materials form tea 茶葉中水浸出物的提取試驗(yàn)及數(shù)學(xué)分析
Extraction tests were conducted on asphalt concrete specimens sampled from field roads . asphalt concrete and aggregate gradation were compared to design and acceptance specifications 對(duì)實(shí)際路面取樣進(jìn)行了抽提試驗(yàn)并與規(guī)范進(jìn)行了比較分析。
The extraction test to the different class signals tell us that the correlation dimension and generalised dimensions may effectively involve the class information of different ships , otherwise the h2 entropy is difficult to classify the targets 通過對(duì)不同類別信號(hào)的特征提取表明,關(guān)聯(lián)維數(shù)和廣義維數(shù)能有效地代表不同類別的艦船特征,而h _ 2熵特征并不明顯。