浓度

The ion concentrations were studied in both four snow pits on Hami Miaoergou FlatTopped Glacier and one snow pit on Haxilegen Glacier No.51 of Kuitun river in eastern Tianshan Mountain, and both snow pits were retrieved in 2004. The results show that the Ca2+, NO-3 and SO2-4, particularly Ca2+, are major ions in the snow of snow pits in both ablation and accumulation area and also in the ice of snow pits in accumulation area on Hami Miaoergou FlatTopped Glacier, where the relationships among major cation concentrations in snow of snow pits can be revealed by ion concentrations in the ice of snow pits, but the correlation between ion concentrations in the snow of snow pits and elevation is not obvious, which probably can be attributed to the narrow span of elevation and sparse snow pits on glacier. However, the good correlation between ion concentrations in the ice of snow pits and elevation indicates that the elution process weakened gradually with the elevation rise and temperature decrease.

对2004年获取的天山奎屯河哈希勒根51号冰川1个雪坑和哈密庙尔沟平顶冰川4个雪坑的离子浓度特征进行了研究，结果表明：Ca2+、NO-3和SO42-是哈密庙尔沟平顶冰川雪坑雪层和积累区雪坑底部冰中的主要离子（尤其是Ca2+），其雪层中的主要阳离子关系可在底部冰中得以较好的反映，但雪层中各离子浓度与海拔的相关性不明显，可能与海拔的跨度较小和挖取的雪坑较疏有关；雪坑底部冰中的离子浓度与海拔间明显的相关性说明淋融作用随着海拔升高、气温降低而逐渐减弱。

The plasma concentration (10-6 M) following I administration in patients with ARDS may be sufficient to stimulate AFC if a similar concentration reaches the airspaces. Aerosolised deliery of a beta-2 agonist can achiee higher concentrations in the distal airspaces and maximal AFC.

讨论：ARDS患者中静脉使用舒喘灵达到血浆浓度10-6 M（如果气腔内达到同样的浓度）可以有效刺激AFC，雾化吸入的β 2–激动剂可以在末稍气腔内达到更高的浓度和最大的AFC。

The expression of autotrophs growth kinetics indicates that autotrophs maximum growth rate can be determined by analyzing the varying trend of nitrate nitrogen concentration with time changing under conditions of lower initiative nitrate nitrogen concentration and autotrophs concentration.

自养细菌增长动力学表达式表明，在较低的起始硝态氮浓度和自养细菌浓度条件下，通过分析硝态氮浓度随时间的变化趋势，可以确定自养细菌最大增长速率。

In order to examine the influence of higher ionic strength on the interaction between QDs and avidin, the fluorescence spectra of free CdTe and CdTe-avidin solution are recorded as a function of increasing NaCl concentration.

实验还考察了盐浓度对QDs-亲和素体系的影响情况，结果发现随着盐浓度的增大，QDs-亲和素体系的荧光峰位逐渐蓝移，而单独量子点的荧光峰位基本不变，这说明盐浓度的增加削弱了CdTe量子点与亲和素分子之间的结合作用。

In conclusion, our studies indicated that, by reducing the concentration of corticoid, increasing the GH concentration, dietary glutamine could maintain the N balance in the body, induce the intestinal glutamine extraction from blood, maintain the glutamine store in muscle tissue and plasma, decrease the glutamine flux from muscle tissue and protein catabolism. As the key fuel of intestinal mucosa and lymphocytes, exogenous glutamine maintained the intestinal structure, function and the CD4〓/CD8〓 ratio. In addition, glutamine normalized the SIgA containing cells'quantity and distribution through stimulating the IL-6 gene expression.

综合分析本研究的试验结果，我们认为，日粮中的外源性Gln可通过降低断奶应激后血清中皮质醇浓度，升高生长激素的浓度维持体内N的平衡，降低肠粘膜细胞从血浆中摄取的Gln，减少骨骼肌蛋白质的分解，维持骨骼肌和血浆中Gln浓度，维持淋巴细胞亚群中CD4〓/CD8〓比例；提供肠粘膜细胞能源和代谢的前体，维持肠粘膜正常的屏障结构和功能，通过刺激IL-6的表达，维持肠粘膜中SIgA分泌细胞的数量和肠道的局部免疫功能，并最终提高断奶仔猪的生产性能和抗病能力。

BMSCs were isolated, depurated, cultivanted, and identified,then incubated with the concentration of 25μg Fe per milliliter at 37℃in 5% CO2. The labeled cells were stained by Prussian blue/trypan blue,and observed under fluorescent microscope.2. The labeled cells of different density (1×104/ml,5×104/ml,1×105/ml,5×105/ml,1×106 /ml,5×106/ml)were imaged by MRI with T1WI, T2WI and T2*WI sequences;and the same density (5×104/ml,1×105/ml)labeled cells were imaged by T2*WI sequences at different time.Then the signal intensities were measured and statistically analyzed.3. The model of rabbit renal ischemia-reperfusion injury was set up and treated. Then BMSCs(5×105)were injected into 16 recipient rabbits(1abeled cells in 10,unlabeled cells in 6)from ear vein.MR images of kidneys were obtained respectively at the time points of 0,1,3,5, 8 days after transplantation and before transplantation. MR imaging findings were analyzed,which were correlated with histological findings.

实验方法1分离、纯化、培养、鉴定兔BMSCs并以SPIO以25μg Fe/ml培养液浓度标记，对标记后不同时间的细胞行普鲁士蓝染色和台盼蓝拒染后显微镜观察。2将不同细胞浓度标记细胞管(1×104/ml、5×104/ml、1×105/ml、5×105/ml、1×106/ml、5×106/ml)，以不同扫描序列T1WI，T2WI，T2*WI(GRE进行MR成像，再选择相同细胞浓度组(5×104/ml、1×105/ml)进行不同时相MR成像，并测量信号强度，进行统计学分析。3缺血再灌注肾损伤模型建立和处理，然后将标记和未标记细胞(5×105个)经耳缘静脉移植入家兔体内(共16只：注入标记细胞者10只，注入未标记细胞者6只)，两组均于注射前、注射后第0、1、3、5、8天应用MRI对移植细胞进行活体示踪并与肾脏组织切片对照，然后对收集的信号强度进行统计学分析。

In same hemodialysis conditions, the 8 blood samples were dialysed for 3 minutes in turn. The urea concentration of pre and post hemodialysis and the collected dialysate were measured and urea reduction ratio was calculated. Results The URR were 97.7%、95.6%、90.5%、85.8%、84.1%、75.9%、62.5% and 54.8%(r=-0.9654) respectively(P＜0.01) as the Hct elevated.

在相同的血液透析条件下每个血样透析3min，同时收集透析废液，分别测定透析前后血样本及透析废液中的尿素浓度，通过血尿素浓度计算尿素清除量及尿素下降率；通过透析液尿素浓度计算其尿素含量，并与前者比较其一致性。

With the increasing of Pb and Cd concentration and the prolongation of the time, the net photosynthetic rate, stomatal conductance, transpiration rate of all hybrid tulip trees decreased and the downtrends of NE60 and NEF14 which were stress- resistence were small. But the changes of intercellular CO2 concentration were difference.

在Pb、Cd胁迫下，杂交鹅掌楸净光合速率、气孔导度和蒸腾速率均随胁迫浓度的增加和胁迫时间的延长而下降，且抗性较强的NE60、NEF14降幅较小，而胞间CO2浓度随浓度和时间变化各杂交鹅掌楸变化存在差异。

As the raise of ammonia-N concentration, survival rate and daily growth of unexuviated larvae decreased gradually, while the metamorphosis rate and daily growth of exuviated larvae increased gradually firstly and then decreased. As the raise of sulfureted hydrogen concentration, all the parameters measured decreased gradually.

在本试验浓度范围内，随着氨氮浓度的升高，三疣梭子蟹各期幼体存活率和未变态个体的日生长率都逐渐降低，变态率和变态个体的日生长率则先逐渐升高，达到一个峰值后又逐渐降低；随着硫化氢浓度的升高，三疣梭子蟹各期幼体存活率和日生长率A均呈现逐渐降低趋势，变态率和日生长率B也逐渐减小。

The way that concentrated slurry under requirement returns directly to the storage tank of feed slurry helps to keep the stability of feed concentration, which is the solution to the fluctuation of discharge concentration.

采取浓度未达标的浓缩完成液直接返回浓缩前储罐的方法，可以保持进料浓度稳定，系统控制的稳定性大大提高，解决了降膜蒸发系统由于进料浓度波动带来的启动波动大、控制困难等问题。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！