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浓度点
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  concentration point
     And(i) when H≤σz,the maximum concentration point is z = 0;
     且(i)当H≤σ_z(σ_z为铅直扩散系数)时,Z=0为铅直方向最大浓度点;
短句来源
     Through the statistics and the analysis on the standard working curve of Nitrogen Oxides as well as contrast experiments,the key of the factors which influenced the inclination of the working curve of Nitrogen Oxides lower was that the absorptance of high concentration point is lower,and the factors that effected the absorptance inclination of high concentration point lower were color time and color temperature.
     通过对NOx标准工作曲线的统计分析及对比试验,找出了影响NOx标准工作曲线斜率偏低因素的关键是高浓度点的吸光度偏低。 而影响高浓度点吸光度斜率偏低的因素是显色时间与显色温度。
短句来源
     The paper discusses the conception of criterion curve and relative deviation,and puts forward the method to select concentration point and calculation formula correctly when criterion cure is calibrated with bipunctate calibrating method.
     本文用校准曲线及相对偏差概念论述了应用二点校正法校正校准曲线中正确选择浓度点及计算公式
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  “浓度点”译为未确定词的双语例句
     The bcr/abl expression decreased from (1.38±0.02) to (0.97±0.01) after exposure of the cells to 8.0 μg/ml berbamine for 0 and 72 hours(P<0.01).
     经8.0μg/mlBER处理后,与同浓度点对照组相比,72小时组的表达明显地减弱(0.97±0.01vs1.38±0.02,P<0.01)。
短句来源
     Compared with the control group, relaxation responses of SO rings in HC group to SNP (0.1 nmoL/L-1 mmoL/L) were markedly decreased after the administration of KCI (60 mmoL/L) in HC group (P<0.01).
     用60 mmoL/L KCl预收缩SO肌环后加入SNP (0.1 nmoL/L-1 mmoL/L),在各个浓度点HC组的舒张反应均明显低于对照组(P<0.01,t=5.12).
短句来源
     Compared with that in control group, the ratio of contractile responses induced by TEA (3-8 mmol/L) or 4-AP (8-18 mmol/L) to those induced by 60 mmol/L KCl was decreased sig- nificantly in HC group (t = 2.72, P < 0.05; t = 4.71, P < 0.05).
     以2mmol/L为浓度梯度累积加入4-AP,从8至18mmol/L,HC组SO肌环对4-AP的相对收缩反应在各个浓度点均较对照组显著降低(t=4.71,P<0.05).
短句来源
     The linear range fro potassium chloride was 0~3.0μg, r=0.9987. The average recovery rate was 100.3%, RSD=1.1 (n=9).
     在标示量的 80 %、 10 0 %、 12 0 %三个浓度点测定回收率 ,平均回收率为 10 0 3% ,RSD为 1 1% (n =9)。
短句来源
     After the administration of KCI (60 mmoL/L) relaxation responses of rabbit SO rings to Nif (0.1 nmoL/L-3 μmoL/L) were not found difference between in the two groups.
     用60mmoL/L KCl预收缩SO肌环后加入Nif,两组对Nif(0.1 nmoL/L-3 μmoL/L) 的舒张反应在各个浓度点均无明显差别.
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  相似匹配句对
     RIA was used to examine the concentration of estradiol and progesterone.
     浓度
短句来源
     It is not necessary to ascertain the equivalent point and to know the concentration of the titrant.
     无需确定等当和滴定浓度
短句来源
     concentration of substrates;
     底物浓度
短句来源
     The problems about grain are paid more and more close attention to the Wholeworld.
     问题。
短句来源
     Calculation of yearly Average Air Pollution in Concentration from Multi-Source
     多源大气污染年平均浓度预测计算
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  concentration point
Ligand binding to cortical membrane preparations from each mouse was measured by a one-concentration point (2?nM) binding assay.
      
Brad will need to use a hub as a concentration point to tie all the computers in his star network together.
      
Consequently, Palermo is a major concentration point for all the fibre optic cables connected with the Mediterranean region and beyond.
      
Each concentration point indicates basal LHRH levels versus stimulated levels.
      
Each concentration point was replicated in eight wells, and all experiments were conducted minimally in triplicate.
      
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Starting with the equations of phase equilibrium curve for the Collins model of two-dimensional alternative binary system, we obtained the conditions which must be satisfied by the attractive interactions between the atoms to get the phase diagram with a minimum (or maximum) point. The obtained results show that, this point is unique, and the position of the point (zf, tf) changes with the percent age of 4-atom obviously.

本文从二维二元替换式Collins模型系统的两相平衡曲线方程出发,求得了形成极小等浓度点或极大等浓度点类型相图原子间相互作用势所必须满足的条件,证明了极值等浓度点的唯一性。计算结果还表明,4-原子所占百分数对极值等浓度点的位置有显著影响。

A series of diffusion experiments was made in a mountainous region near kunming. SF8 was used as tracer, and released at 70 or 80m above ground and sampled along several points from 150m to 6km downwind. Each experimental lasted 1-2h and successive sampling was made with at an interval of 5-10min. In addition, experiments of neutral balloon were made for comparison.

本文主要介绍昆明附近某地的一次扩散试验.结果表明,水平扩散参数对不同稳定度分辨得较好.导出的垂直扩散参数能反映出地面不同粗糙度的差别,所得最大落地点浓度点距离及稀释因子比采用P-G参数提级办法算出的结果更符合实测值,并指明平均气流的上升或下沉对落地浓度的影响不可忽视.在有风条件下,导出了扩散参数随取样时间变化的指数q值.在小风条件下,对稀释效果起主要作用的是水平风方位变化的范围及垂直气流的方向和强弱,而垂直稳定度所起的作用往往是间接的.在模式选用上,小风和静风应加以区别.静风时可忽略模式中各速度分量,小风和静风的界线约在0.6m/s左右.

A mathematical model for describing the start-up period of a plate distillation column operating under total reflux was derived on the basis of the differential-difference equation expressing the material balance on the trays with holdups in the reboiler, trays and condenser, and an analytical solution was presented. The existence of a constant-composition point during the start-up period was proved mathematically.

本文从描述塔板上物料衡算的差分-微分方程出发,导出了在全回流封闭操作条件下,当塔顶、塔板和塔底均有存料时开工过程的数学模型并求出其解.根据数学解还证明了板式精馏塔在开工过程中存在着恒浓度点.在一个具有七块塔板,直径为0.17m的筛板塔上对水-乙酸物系进行了开工过程的实验.本文公式的计算值与实验数据较好的吻合并证明了塔内恒浓度点的存在.

 
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