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(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。
Study on extraction separation rare metal ions by using a polymeric azo reagent 聚合偶氮試劑萃取稀有金屬離子的研究
The extraction separation - molybdenum blue photometric method for the determination of arsenic content 砷鉬藍(lán)光度法測(cè)定砷量
The extraction separation - the dimethylglyoxime spectrophotometric method for the determination of nickel content 丁二酮肟分光光度法測(cè)定鎳量
Methods for chemical analysis of iron ores - the extraction separation - molybdenum blue photometric method for the determination of arsenic content 鐵礦石化學(xué)分析方法萃取分離-砷鉬藍(lán)光度法測(cè)定砷量
Methods for chemical analysis of aluminium alloys - part 10 : determination of zinc content by dithizone extraction separation - polarographic method 鋁合金化學(xué)分析方法第10部分:雙硫腙萃取分離-極譜法測(cè)定鋅含量
The development of solvent extraction separation of alkaline earth elements was reviewed , according to the classification of extractants 摘要本文就堿土金屬離子萃取分離的進(jìn)展情況,按萃取劑的分類進(jìn)行了綜述。
Application progresses on extraction separation , reaction engineering , environmental protection and material preparation are reviewed 敘述了超臨界流體技術(shù)在萃取分離、反應(yīng)工程、環(huán)境保護(hù)和材料制備等方面的應(yīng)用進(jìn)展。
Methods for chemical analysis of iron , steel and alloy . the chlorophosphonazo ma photometric method for the determination of cerium content after extraction separation 鋼鐵及合金化學(xué)分析方法萃取分離-偶氮氯膦ma光度法測(cè)定鈰量
Objective the chemical constituents and antimicrobial activity of the volatile oil from elsholtzia rugulosa were studied on the basis of researching its extraction separation 摘要目的:研究香芝麻蒿揮發(fā)油的提取分離方法、化學(xué)成分及抑菌作用。
Methods for chemical analysis of iron , steel and alloy . extraction separation - chlorophosphonazo ma spectrophotometric method for the determination of the total rare tarth content 鋼鐵及合金化學(xué)分析方法萃取分離-偶氮氯膦ma分光光度法測(cè)定稀土總量