分离用的

Firstly, based on natural gradient and nonlinear principal component analysis, a matrix equation is obtained by block recursive updating,and then the matrix equation is solved using QR factorization and back substitution to obtain the optimal separating matrix.

此外，结合自然梯度和非线性主分量分析提出了一种块递归的盲源分离方法，构造出按块递归更新的矩阵方程，然后用QR分解和回代法求解该矩阵方程得到最优分离矩阵。

The circumfluent circulation cyclone separator is an important breakthrough for the cyclone separation technology,which can efficiently collect submicron dusts(≤2μ) with low pressure drop and great turndown ratio.

环流循环除尘系统是旋风分离技术上的一个重要突破，它成功地解决了用旋风分离器高效捕集亚微米粉尘(≤2μ)的问题，同时还具有压降低、操作弹性大等优点。

After separation,we got the result by GC-8900 gas phase color spectrometer .

文中对待分离的混合液，经分离后，用GC8900气相色谱仪对固相，液相分别测定了他们的含量。

Person who compress refrigeration according to refrigeration principle the compressor , condenser , choke valve and evaporimeter, and for make refrigeration to be efficiency even more high and operating still more safer assisting equipment Such as the oil separator, person who store liquid,, angry liquid separator , circulation store liquid barrel , collect oil device , person who drop a hint , valve piece , instrument ,etc.

压缩式制冷是根据制冷原理将压缩机、冷凝器、节流阀和蒸发器，以及为了使制冷效能更高、运行更安全的辅助设备（如油分离器、贮液器、气液分离器、循环储液桶、集油器、放空气器、阀件、仪表等）用管道连接组成的一个闭合制冷循环。

The factors included the type of extractant, the amount and the extraction times, the type of purified column, the type and dosage of eluviatant about the pre-treatment of the samples. The extraction was 3 minutes (13500rpm) of high speed homogenize extraction. 50mL acetonitrile as an extractant was acted on one time extraction. The florin silicon column was taken as the purified column. The extraction was eluted by 30ml 3:2 acetone - hexane and concentrated by nitrogen blowing under 50 °C water bath.The chromatographic separated conditions were studied applied the Agilent 6890 gas chromatographic apparatus and DB-17 capillary column(30m×0.25mm×0.25μm).

研究了提取剂种类、用量与提取次数，净化柱种类，淋洗剂种类与用量，提取方式与提取时间，柱温和柱流量等因素对油菜籽中有机磷农药残留提取、分离净化和色谱分离的影响，建立了采用高速匀浆提取方式提取3min13500rpm.min~(-1，以50mL乙腈为提取剂一次提取，以弗罗里硅柱为样品液净化柱，以30mL 3：2丙酮-正己烷为淋洗剂，在50℃水浴条件下用氮吹浓缩，气相色谱检测的油菜籽有机磷农药多种残留检测技术。

Macerate 1.0g of the powdered sample with 20.0 ml of chloroform plus 0.3ml of 25％ NH_4 OH in a glassstoppered flask overnight.

本文报道用不含粘合剂的氧化铝薄层，以二甲苯-丙酮-无水乙醇-二乙胺(50：40：10：0.6)为展开剂分离茄科植物中的莨菪碱、东莨菪碱、山莨菪碱、樟柳碱及红古豆碱等五种莨菪烷生物碱，用改良Dragendorff试剂-Wagner试剂(1：1)显色，定量收集莨菪碱、东莨菪碱及山莨菪碱的斑点，莨菪碱和东莨菪碱用氨甲醇洗脱，蒸干洗脱液后分别用pH 5.6及pH 4.5的溴甲酚绿溶液作比色测定；山莨菪碱用4％醋酐氯仿洗脱，蒸干洗脱液后用pH 5.6的溴甲酚绿溶液作比色测定。

Methods XbaI was used to digest the total DNA of Salmonella enteritidis strains isolated from the food poisoning samples.

对食物中毒中分离的肠炎沙门菌用XbaI酶切总DNA，用脉冲场凝胶电泳法进行分子分型，用BioNumerics软件对PFGE分型图谱进行电子化数据分析，绘出聚类分析图。

The free fatty acids were extracted with petroleum ether and were separated on silicon gel column chromatography. The ethyl acetate-soluble lipid fraction and water-soluble lipid fraction were subjected to hydrochloric acid-catalyzed methanolysis, then were extracted with petroleum ether, respectively.

用石油醚提取低极性组分，经硅胶柱层析分离得到游离脂肪酸；用乙酸乙酯提取酯溶性神经酰胺及其衍生脂类，提取物和残余的水溶性脂类分别经盐酸甲醇解，水解产物再用石油醚提取。

Methods:An individual KG1a+ phagescFv library for the binding specificity to eight hematopoietic progenitor cell lines by indirect immunoflurorescein were identified.

用完整的KG1a细胞吸附法富集文库3轮，再用CD44单克隆抗体为引导分子进行引导选择，分离单克隆后用间接免疫荧光法鉴别其细胞结合特异性。

Methods:An individual KG1a+ phage??scFv library for the binding specificity to eight hematopoietic progenitor cell lines by indirect immunoflurorescein were identified.

用完整的KG1a细胞吸附法富集文库3轮，再用CD44单克隆抗体为引导分子进行引导选择，分离单克隆后用间接免疫荧光法鉴别其细胞结合特异性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。