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。
Solvent effect on extraction efficiency of chlorogenic acid from the leaves of eucommia ulmodies by ultrasonically assisted extraction technique 超聲助提杜仲葉中綠原酸的溶劑效應(yīng)
By broking the wall of powdered oils with ultrasonic , the oil extraction efficiency yield was 65 % , which met the need of determining pov 超聲波破壁法提油其提油率可達(dá)65 %左右,可滿足測定要求。
For improving the extraction efficiency of anthocyanins , inactivate these substances is needed during raw material processing and pigment extraction 在色素提取時(shí)要首先將這些活性物質(zhì)鈍化,以提高花青素的產(chǎn)率。
Analytical formulas for the peak power , pulse energy , pulse width , energy extraction efficiency , repetition rate and average output power are derived 計(jì)算出了自調(diào)q脈沖的峰值功率,單脈沖能量,脈沖寬度,能量利用率,重復(fù)頻率,平均輸出功率等。
The respectively and the extraction efficiency of drugs in blood and urine were 95 . 8 - 98 . 5 % ( barbitone 68 . 83 - 69 . 94 % ) , viscera were 83 . 2 - 91 . 2 % ( barbitone 60 . 02 - 67 . 32 % ) 5范圍內(nèi):臟器檢材除巴比妥茬取率為60刀2 67 32以外,其余藥物革取率均在83二gi二范圍內(nèi)。
As a result , the sensitivity of method was enhanced . the extraction efficiency , stability , selectivity and quantity capability of c16 - mcm - 41 coated fibers to the samples were investigated 用xrd 、 n _ 2吸附-脫附、元素分析、 ft - ir和熒光光度法對復(fù)合材料進(jìn)行了表征,熒光光度法是本文首次用于介孔復(fù)合材料的表征。
Supercritical fluid extraction ( sfe ) is a sample separation technology and it has the advantages of simplicity 、 good extraction efficiency 、 rapidity 、 great analyte selectivity 、 easy control reduced environmental hazard and so on 摘要超臨界流體萃取作為一種樣品分離技術(shù)具有操作簡單、高效、快速、選擇性高、易于控制、環(huán)境友好等特點(diǎn)。
Our experiments showed that the methed has many advantages , such as high extraction efficiency , simply process , less pollution , and the cost is smoll etc . but extraction quotiety of the dark brown pigment differ from walnut epicarp of the three made of dryness 色素溶液的吸光度隨波長增加而減小的趨勢相同,色素的水溶性,耐氧化一還原性,耐光性,鹽、蔗糖、金屬離子對色素的色澤的影響基本相似。
Abstract : the total quantity of perylene quinonoids in hypocrella bambusae ( b . et br . ) sacc . , shiraia bambusicola p . henn and culture substance of ascomycetes hypocreacae ( fr ) tul . sp . were determined with spectrophotometric methods . the relative extraction efficiency were studied when ethanol , acetone and chloroform were used as solvents . among them acetone was the best one 文摘:用分光光度法測定了竹紅菌、竹黃和菌寄生菌培養(yǎng)物中?醌類化合物的總量;同時(shí)研究了以無水乙醇、丙酮和氯仿為溶劑提取?醌類化合物的相對效率,結(jié)果發(fā)現(xiàn)以丙酮為溶劑最合適。
For the ld pumped self - q - switched laser , the peak power , pulse energy , pulse width and energy extraction efficiency , which have been influenced by the loss in the cavity , cavity length and the threshold absorption coefficiency of the absorber , have been calculated . then we know how to choose the parameters of the self - q - switched laser for design 根據(jù)自調(diào)q二極管泵浦固體激光器的特點(diǎn),計(jì)算了腔內(nèi)損耗、腔長和飽和吸收體的初始吸收系數(shù)對于峰值功率、單脈沖能量、脈沖寬度和能量利用率的影響,并由此提出了設(shè)計(jì)自調(diào)q激光器中的參數(shù)選擇規(guī)律。