查询词典 retention

Based on the retention and Z (the number of solvent molecules involving in t he displacement from stationary-phase surface ), log I (a constant relating t o the affinity of 1 mol of solute to the bonded stationary phase ), and j (a const ant r elating to the affinity of 1 mol of solvent to the bonded stationary phase ), th e elution strength of acetic acid-water mobile phase was found to be stronger th a n that of methanol-water-TFA.

用参数Z （1 mol溶剂化溶质被溶剂化固定相吸附时从两者接触表面释放出置换剂的摩尔总数），log I （与1 mol溶质对固定相亲和势有关的常数）和j（与1 mol溶剂对固定相亲和势有关的常数）对9种蛋白质在此流动相体系中的保留进行了表征。

High-pressure liquid chromatography was used to determine the retention time and integral area ratio of every esterified production.

对不同条件下合成的三羟基二苯甲酮酯化215感光剂进行高效液相色谱分析，确定了产物中各酯化产物的保留时间及其在产物中所占的积分峰面积比。

Cell cycle uncoupling indued by DNA damage;2. Effect of 5-flurouracil on cell cycle uncoupling of Jurkat and EL-4 cell lines;3. This paper studies the sludge reduction effect caused by sludge concentration,sludge retention time and temperature in the uncoupling reactors in OSA process by both single-factor and orthogonal method.

采用单因素试验和正交试验的方法分别研究了城市污水污泥减量OSA工艺中解偶联池中污泥浓度、污泥在解偶联池反应时间、解偶联池温度对污泥减量效果的影响，发现增加解偶联池污泥浓度或延长污泥在解偶联池的反应时间或增加解偶联池温度都将导致解偶联池ORP线性下降，且污泥表观产率系数Yobs与ΔORP或各因素之间分别遵循Yobs=-0。

The characteristics of acrylic lacquers are very rapid surface drying, and excellent gloss and colour retention.

特性是能够快速干燥而且有很好的光泽和色彩。

If there has been no disruptive behavior meriting the retention of that personal information, then the sysop can delete the page straight away in order to eliminate general public distribution of the history containing the information.

如果您不是一个系统管理员，您是不可能删除您自己的用户页和其子页的，因此您要把需要删除的用户页列 Wikipedia：快速删除页面。

Ball Rentention - 10/10 - always seems to have time and space, regardless of pressure, and rarely misplaces a pass.

控球能力：10/10（作者对他这个 Ball Retention 的解释是&在有压力情况下控好球并传出去&）能很好地找到时间和空间，避开压力传出好球。

In the range of the world , the real estate tax systems lay particular stress on the real estate retention in mostly nations , where they account appraisal of real estate as a tax basis . Most of taxes belong to provincial main taxes so that local governments have power for levying and controlling .

从世界范围来看，大多数国家的房地产税制都偏重于房地产保有环节，以房地产评估价值作为计税依据，基本上都是地方的主体税种，占地方税的一半以上，地方有比较大的征管权限。

They may need addition of humus or mulches to improve water and mineral retention and prevent leaching.

要提高此种土壤的保水保矿物分子能力并防止矿物被滤去需要加入腐殖质或地面覆盖物。

Hill-reservoir has a short retention time; its phytoplankton community was characterized by low abundance and no obviously dominant species. The zooplankton was predominated numerically by rotifer and nauplii.

山地型水库具有较明显的河流特征，浮游植物的种类数和细胞密度均较低，有较多的河流种，无明显优势种；浮游动物的种类和数量很低，以轮虫和桡足类幼体为主。

Methods by using a broad pH range column(Gemini NX C18,4.6mm×150mm,5μm),basic mobile phase which was[H_2O-ammonia-glacial acetic acid] (96:3.6:0.4)-methanol,the related substances in etimicinsulfate were separated and detected by electrospray ionization and positive ion monitoring,the ESI ion source condition was following: temperature is 350℃,nebulizing pressure is 50 psi,dry gas flow is 10 L /min.some related substances in etimicinsulfate were identified by comparing the retention time in chromatography,~+ spectrum and MS~2 spectrum with reference substances\',the others which haven\'t reference substances were identified or speculated by analyzing their MS~2 fragmentation with the help of a rule summarized from the MS~2 fragmentation of gentamicin C1a,micronomicin and etimicin.Results nineteen related substances in etimicinsulfate were separated and detected.

方法利用宽pH范围的Gemini NX C18(4.6mm×150mm，5μm)色谱柱，在碱性条件下，以[水-氨水-冰醋酸(96：3.6：0.4)]-甲醇(70：30)为流动相，直接分离各组分；并用HPLC-ESI-MS~2检测样品中各组分，质谱条件：ESI离子源，离子源温度350□，雾化室压力50 psi，干燥气流速10 L/min，正离子检测方式；对有对照品的有关物质采用比对有关物质与对照品的色谱保留时间、准分子离子的质荷比及二级质谱方法进行鉴定，无对照品的有关物质，则是先通过解析庆大霉素Cla、小诺霉素、依替米星的二级质谱，对该类化合物的二级质谱裂解规律进行归纳，并以此推测未知新化合物进行结构，再用推测的结构对二级质谱进行解析，如所有的碎片离子均合理解释，表明推测合理。

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％。