查询词典 representative sample

A very low linear expansion coefficient sample carrier made from invar, ensures that temperature change has no effect on the sample position.

由不胀钢制成非常低膨胀系数的样品载台保证温度变化对样品的位置没有影响。

Results In measurement with improving five-step iodometry method,it was optimal that the total concentration of the oxides in the sample solution was 1000-3000 mg/L and the sample volume was 2-5 ml.

结果改进五步碘量法测定中，样品溶液中氧化性物质的总浓度在1000-3000mg/L，取样量为2-5ml为佳。

This can give rise to "lampwick effect", while in CONE, the tested sample is horizontally placed and is given equally radiation in all aspects of the sample.

此外，研究还发现，炭层的阻燃作用不仅与炭量有关，更重要的可能是炭层的结构和质量。

Fig 1 Negative control Female umbilical cord sample has no Y-specific signal after in situ hybridization with the biotinylated Y-repeated sequence DNA probe PY3.4 Fig 2 Positive control Flow-sorted male umbilical cord cells hybridized to Y-specific DNA probe PY3.4,Every cell contains a Y-specific signal Fig 3 Fetal cells sorted from maternal blood Flow-sorted cells from a pregnant woman at 20 weeks of gestation hybridized to Y-specific DNA probe PY3.4,containing a Y-specific signal Fig 4 The result of polymerase chain reaction Lane 1:male umbilical cord NRBCs sorted by FITC-conjugated anti-monoclonal glycophorin A;Lane 2:sample of 2;Lane 3:male umbilical cord NRBCs sorted by FITC-conjugated anti-CD36;Lanes 4-5:samples of 1 and 3;Lane 6:50 cells of male;Lane 7:5 cells of male;Lane 8:200ng male DNA(positive+control);Lane 9:nonpregnant female DNA(negative+control);Lane 10:ΦX174 HaeⅢ Maker,271bp:amplified band of Y-specific gene SRY;383bp:amplified band of human β-globin gene

图1 阴性对照女性脐带血标本，经与生物素标记的Y-染色体重复序列DNA探针原位杂交后未见Y-染色体特异信号图2 阳性对照分选的男性脐血细胞经与Y-特异DNA探针杂交后，每一细胞都含有Y-染色体特异信号图3 母体外周血中分选的胎儿细胞从一位妊娠20周的孕妇外周血中分选出的细胞经与Y-特异DNA探针杂交细胞中含有Y-染色体特异信号图4 聚合酶链反应结果 1：GPA-FITC单抗分选男胎脐血NRBCs；2：2号标本；3：CD36-FITC单抗分选男胎脐血NRBCs；4、5：1、3号标本；6：50个男性细胞标本；7：5个男性细胞标本；8：200ng男性DNA；9：未孕女性DNA；10：ΦX174 HaeⅢ标准，271bp：为SRY基因扩增带；383bp：为人β-珠蛋白基因扩增带内参照

Aimed at the characteristic of multiple types of faults possibly happened in nuclear power plant, large scale of training sample, and requirement of quick and accurate diagnosing, after the analysis of large sample number generated by large fault type exceeds limitation of 64K paragraph in DOS and large number of local minmum in error surface, measurements of same format of data file, Win95/NT operating system platform, resetting weight learning rate, dynamic training set in quick learning algorithm and improvement on quick learning algorithm using homotopy method which can avoid local minmum points in error surface have been adopted to ensure quickly and effective process of the course of neural network's training and testing.

针对核动力装置可能发生的故障种类多，训练样本规模大，故障诊断需要快速准确的特点等，分析了样本多和故障种类多产生的训练样本量超出DOS段大小和网络误差曲面上局部极小值多的情况，采取了使用相同格式数据文件、Win95/NT操作系统平台，对快速学习算法采用重置神经网络权值学习率和动态训练集、并采用能够有效克服网络误差曲面上局部极小点的同伦方法对学习算法进行改进等措施保证神经网络训练测试过程的快速、有效地进行；针对装置发生的故障须快速、准确诊断的需要，分析了故障的产生对装置参数变化的影响及操纵员对故障诊断的基础，在核动力装置发生故障时参数曲线的变化量与正常运行时参数曲线的变化量存在明显差异的基础上，提出采用参数曲线的变化量作为神经网络的输入，并围绕参数变化量的方法采用二次曲线拟合滤波求变化量和阈值技术来保证神经网络得到精确的装置参数变化量，从而得到准确的诊断结果。

This method also allow us to select the most efficient way from the bulk optical systems and available recoding methods, i.e., identifying the space bandwidth product of the input signal, the minimum size of lens apertures, the sample space and total sample number of CCD and spatial light modulator, the need of magnification before the signal passes through a SLM or when the signal reaches the camera.

通过该方法可以确定合适的加密系统和光学器件，例如输入信号的空间带宽积、变换透镜的最小孔径、空间光调制器的分辨率和像素大小、CCD的分辨率和像素大小以及入射到空间光调制器和CCD靶面上光场所需的放大倍数。

At the same time ,the sample machine's distribution diagram of the magnetic line of force and the sample machine's wave of the flux density in the air gap are given.

通过对同步发电机的电磁场计算结果进行后处理，得出了同步发电机的旋转磁场波形、电压波形以及空载特性曲线。

To Dabaoshan copper ore, at slurry concentration of 10%, lixivium pH of 2. 0, with the domesticated bacterial, copper extraction could reach 27. 84% after 25 days leaching in sample 1〓, in which low grade copper sulfide ore is the main component; in sample 2〓, hypo-sulfide ore is the main component, copper extraction could reach 77. 78% after 10 days leaching.

大宝山铜矿石细菌浸出工艺条件试验研究表明，对于以低品位硫化矿为主的1〓矿，当矿浆浓度为10％、浸出液pH2.0，采用驯化的菌种浸出25天，Cu浸出率可达27.84％；在相同浸出条件下，对于以次生硫化矿为主的2〓矿，浸出10天，Cu浸出率可达77.78％。

GENERAL MISSIONMain missions of this position: to learning and help senior Modelist checking sample on fitting/measurement/workmanship and construction, fill in sample log in book and some paper work job.

营销、机械、企管、人力资源等相关专业大专以上学历； 2）一年以上对外培训机构招生工作经验； 3）良好的口语及书面表达能力； 4）工作认真、仔细，具有强烈的事业心，能承受较大的工作压力；工作职责： 1）负责公司培训学。。。

The results show that a difficult-sheared region exists in the vicinity of the inner corner of the die channel; a dead zone at the outer corner of the die channel and obvious uniform shear deformation at the middle region of sample during ECAE processing are formed. The less-sheared regions caused by friction resistance are observed at lower and top parts, which are symmetric and gradually extend to the inner part along the sample longness. The less-sheared region percentage increases with ECAE processing.

结果表明：挤压过程中试样在模具通道内角点附近形成难变形区；在模具通道外角点形成变形死区；试样的芯部变形比较均匀，为明显的剪切变形；受摩擦阻力的影响，试样顶部和底部均出现了滞变区，该区域呈轴对称分布且沿试样长度方向逐渐向试样芯部扩展；滞变区比例随挤压的进行而增大。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。