查询词典 tracer

In the paper, we mostly studied the change of soil erosion process by a new REE tracer method, based on the theories of hydraulic mechanical subject and radionuclear tracer method, and simulated rainfall was applied to study the sheet erosion changing to rill erosion and the rill erosion process on slope land. The new REE tracer method should be useful to future studying of erosion processes on slope lands.1. Offering and testifying a new REE displacing method to study on the soil erosion of the loess slope.

本文以黄土坡面土壤侵蚀形态演变规律为研究重点，以新的核素示踪技术为手段，采用水动力学与核素示踪技术相结合、室内人工模拟降雨与稳定性REE元素示踪相结合的方法，利用先进的INAA技术，定量研究了不同雨强次降雨条件下细沟间侵蚀向细沟侵蚀的转变过程、细沟发生发育过程，为深入了解坡面侵蚀过程，建立黄土高原土壤侵蚀预报模型提供了研究基础。

In this paper, a new REE tracer method was used to quantitatively distinguish sheet and rill erosion amount. The new REE tracer method should be useful to future studying of erosion processes on slope lands.

本研究为定量区分片蚀和细沟侵蚀量以及坡面侵蚀过程中片蚀向细沟侵的转变以细胞侵蚀发生、发育提供了新的思路和解决途径。

The connection with other nucleis of the pallial thickening were studied by retrograde tracer horseradish peroxidase and fluorescent tracer dextran tetramethylrhodamine, Fluoro-ruby.

本研究采用Nissl染色法、golgi -cox法、神经元逆行追踪标记辣根过氧化物和逆行荧光染料葡聚糖四甲基罗丹明方法，分析了蛤蚧皮质加厚区的核团长度、核团体积、细胞大小、细胞形态、细胞密度、初步的亚区分区以及核团的纤维联系，为阐明爬行动物-蛤蚧的视觉通路核团的特征和纤维联系积累形态学和组织学资料。

The male and female rats (n=15, respectively) were randomly divided into three groups, and Fluoro-Ruby, a fluorescent tracer, was stereotaxically injected into the ventromedial hypothalamus, bed nucleus of the stria terminalis and posterodorsal nucleus of the amygdale by iontophoresis, respectively.Five days later, the rats were perfused, and the sections containing SDN-POA region and site of injection were cut on a freezing microtome.the sections were viewed to assess extent of tracer deposition in the injection site and to reveal the EGFP or Fluoro-Ruby fluorescence in SDN-POA under fluorescence microscope.

雌、雄性大鼠(各15只)随机各分成3组，分别通过离子电渗法将示踪剂Fluoro-Ruby注入下丘脑腹内侧核（VMH、终纹床核、杏仁核后背侧核。5 d后，灌流固定鼠脑，做冷冻冠状切片，荧光显微镜下确定示踪剂注入位置，并观察SDN-POA绿色荧光和Fluoro-Ruby标记荧光。

Methods The wheat germ agglutinin-horseradish peroxidase, a kind of anterograde tracer or retrograde tracer was injected unilaterally into the gigantocellular reticular nucleus. Under light microscope the fibrous connections were observed between Gi and the follow nuclei: dorsal nucleus of vagus nerve, inferior salivatory nucleus, superior salivatory nucleus, facial nucleus, ambiguous nucleus, motor trigeminal nucleus.

将顺、逆行神经示踪剂WGA-HRP注入一侧巨细胞网状核，光学显微镜下观察该核团与一般内脏运动核（迷走神经背核、上泌涎核、下泌涎核）和特殊内脏运动核（面神经核、疑核、三叉神经运动核）的纤维联系。

Gas tracers can be classified into two categories of radioactive tracer and chemical tracer.

气体示踪剂可分为放射性示踪剂和化学示踪剂。

The tracer migration test in horizontal assembly is an important part of the field tracer migration test of nuclides in aquifer.

在水平组件中的迁移试验是核素在含水层迁移试验的重要组成部分。

The tracer migration that the tracer concentration continuously injecting into semi-infinite sand column(initialization velocity is zero) and the pollutant continuously enter into aquifer through a discharging well that completely enter into the dive aquifer are two representative groundwater pollution problems ,Then this paper respectively sets above two decided solution problems and the union simulation problem of groundwater and solute as examples, from the question description, the mathematical model selection and determination, the parameters selecting to carry on the value computation, the read-write of attribute data , visualizes by the IDL programs, carries on the numerical simulation and the visualization post-processing to the above groundwater pollution problems, and according to the numerical solution and the solute migration curves, briefly analyzes and predicts the temporal and spatial distribution features and distribution range of contaminant concentration.

然后分别以半无限长沙柱中连续注入示踪剂浓度的运移、污染物通过一完全进入潜水层的排放井连续进入含水层这两个典型地下水污染定解问题及地下水流和水质联合模拟问题为例，从问题描述、数学模型选取确定、参数选取到运用IDL编程进行数值计算、属性数据读写、可视化，对上述地下水污染问题进行数值模拟和可视化的后处理，并根据数值模拟的数值结果和溶质运移曲线，对污染物浓度的分布范围及随时空变化趋势作了简要分析预测。

For improving the air quality, the concepts of age of air are introduced and the solutions of age of air and ventilation efficiency are obtained by using tracer gas concentration of typical points of the cabin.

为了提高客舱内空气品质，引入了空气龄的概念并给出了由客舱内典型点的示踪气体的浓度求空气龄及通风效率的方法。

Keywords tracer gas, air age, ventilation, experiment

因此本文应用示踪气体实验技术对通风房间的空气龄进行研究。

Connectors are lines that can be anchored to particular places, called glue points , on the graphic object.

连接符，可固定在图形对象的特定的地方的线条。

Another way of putting it, too many agents have a say in each other's work, and bureaucratic rigor mortis sets in.

另一种表达是，太多的作用物在彼此的工作里都有话语权，官僚的僵尸开始抬头。