查询词典 apparent depth

Environment radon is mainly from rock and soil in geological environment, but the research is not connected with geological environment now. On the basis of physical field, the theoretical distribution model of radon in soil and exchange model of earth—air are set up by using Fick diffusion law and Dacy law, and then the research of environment radon is linked with geological environment. This paper described how the evry parameter of the theoretical model influence the radon concentration in air. The results of research indicat that molecule diffusion of radon is different from it's eddy form. Under the condition of surface radon source, the model experiment is used to study the transportation and distribution of radon in medium. The data of experiment show the relationship between radon and depth can be described by exponent. If the radioelement is well—distributtion, the concentration of radon in different depth or in different point at the same depth change with time, but the accumulated exhalation amount of radon at different point on the surface of model are close in relative long time. The author studied the exchange of radon between mediums and verified the theoretical models too.

环境氡主要来自岩石、土壤，而目前环境氡研究中与地质环境结合很少，为此作者以物理场为基础，运用气体运移的费克扩散定律和达西定律，建立起壤中氡浓度分布与大地—大气间氡交换理论模型，首次在理论上将环境氡与地质环境结合起来；论文中从理论上讨论了模型中各参数对空气中氡浓度的影响，发现空气中氡运移的分子扩散方式和湍流扩散方式存在明显差异；通过面状氡源条件下的氡运移模型实验，研究了介质中氡的运移与分布，实验数据表明氡浓度随深度的变化规律可用指数函数描述，在放射性元素分布均匀的条件下，介质中不同深度和同一深度不同点的氡浓度随时间而变，但介质表面不同点在较长时间内向空气中累计释放的氡的量是相近的；同时研究了不同介质间氡的交换，并验证了所建立的理论模型；运用理论模型预测青岛市城区壤中氡浓度、江西临川一住宅区空气中氡浓度及江西二个测区的区域空气中氡浓度分布，取得了较好的效果。

Virtual environment is a condense space from depth direction Through experiment, it is proved that virtual environment could not display original depth of the real world, and it is a depth-condensed space.

通过试验，从调节和集合的角度证明了虚拟环境不可能还原现实世界的深度信息，虚拟环境是一个深度方向被压缩了的空间。

Undrained shear strength of the main silty clay stratumincreases with depth from about 20 to 30 at 4 to 6 m depth to about 30 to 50 at 14 to 16 m depth.

As显示在图4的不排水抗剪强度的地壳层为30至150 ；和强度下降迅速，深入第一4米不排水抗剪强度的主要粉质粘土层随深度约20至30日4 6米深约30到50在14至16米的深度。

From the angel of so-called political"essence"and"rule", the Cainozoic Era writers have not provided much depth for us. But from the angel of life politics, we can find"depth"in other dimension. If we ignore this"depth"and temporize it with excuse of"flatness", our comment will be at risk of invalidity.

假如从所谓历史的"本质"和"规律"的角度看，新生代小说确实没有为我们提供多少"深度"，但仅仅从生活政治这一新的角度着眼，就已经可以看出它们在另外的维度上所拥有的"深度"。

The suitable buried depths of tensiometers used for drip irrigation scheduling of tomato should be determined based on the buried depth of drip tape. The experiments recommended that one tensiometer should be installed just below a drip tape at depth of 30, 50 and 70 cm for the lateral depth of 0, 15 and 30 cm, respectively.

建议采用负压计制定灌溉计划时在毛管所在垂直剖面上安装1支即可，该研究条件下，毛管埋深0、15和30 cm时，用于制定灌溉计划的负压计宜分别埋置在毛管所在剖面上30、50和70 cm深度。

The results show that under the complicated upper limit control logic,the upper limit depth trajectory is not a simple form,but two or more irregular forms of re-entering into the upper limit depth,or regular oscillation form around the upper limit depth.These results may be expected to provide a theoretical basis for analyzing the problem in sea trial.

仿真结果表明，在复杂的上限控制逻辑下，上限深度弹道不是一种形式，可能存在不规则的2次或多次再进入上限的弹道形式，或者存在上限附近深度规则振荡的弹道形式，这些规律为实航中出现的一些特殊现象分析提供了理论依据。

The salient features of channel shrinkage in lower Yellow River are the large decreases of the bankfull discharge and bankfull area while some decreases of the bankfull width, average depth and maximal depth and some increases of the bankfull water level and width-depth ratio.

黄河下游河道主河槽萎缩的最显著特征就是断面平滩流量和平滩面积的显著下降，相应的平滩河宽、平均水深、最大水深出现不同程度的下降，另外可能还伴随着平滩水位和断面宽深比的上升。

This paper analyzes the trends and variations of cross-section profile parameters in lower Yellow River with the methods of time series analysis. The analysis results show that since 1950s, cross-section profile parameters in lower Yellow River have change with trend, especially after 1990s, the bankfull discharge and bankfull area all show decreasing trends at all the four stations. The bankfull width at Huayankou, Gaocun and Lijin station and the average depth at Huayuankou and Aishan station and the maximal depth at Gaocun station show decreasing trends while the bankfull water level at Gaocun and Aishan station and width-depth ratio at Aishan station show increasing trends.

本文采用时间序列分析的方法对黄河下游河道断面形态参数变化趋势及其变异点进行了分析，分析结果表明从20世纪50年代以来，断面形态参数发生了趋势性变化，特别是90年代以来各站平滩流量和平滩面积均有显著的下降趋势，花园口站、高村站和利津站平滩河宽出现了显著下降趋势，花园口站、艾山站平均水深显著下降，高村站和艾山站的平滩水位显著抬高，艾山站的宽深比也有显著增大的趋势。

Chemical analyses of ores sampled from different elevation at the representative Zoujiashan uranium deposit indicate that Fe〓O〓, FeO, MgO and P〓O〓 increase evidently with depth which is related to alteration of haematite, chlorite and apatite, Na〓O and Na〓O+ K〓O also increase with depth, reaching a maximum of Na〓O at 911 meters below the surface, which suggests alkaline alteration increases downwards. At depth of 90 meters below sea level, where the boundary of the two cycles of the volcanic rocks is located, CaO reaches the maximum, representing maximum of alteration of fluorite.

对典型矿床不同富集标高矿体的化学全分析结果表明：随深度增加，Fe〓O〓、FeO、MgO及P〓O〓的含量有明显增高的趋势，这与赤铁矿化、绿泥石化及磷灰石化有关；-90m标高的CaO含量最高，达17.67％，反映这一部位的萤石化最发育；Na〓O及Na〓O+K〓O的含量由浅入深也存在明显的增高趋势，且Na〓O的含量在911m深处为最高，这充分显示碱交代作用从上到下有增强的趋势，而钠长石化在911m处最强烈。

In accordance with the case of large mining depth in Xingdong coal mine, study on coal floor strata failure depth test of working face 2121 was carried out by water injection test. According to variation of unit injection quantity and distance between testing boreholes and working face advance, coal floor strata failure depth was determined by continual water injection and intermitted monitoring.

摘要： 针对邢东矿大采深的情况，利用现场底板注水试验对2121工作面底板采动破坏深度进行了测试研究，依据单位注水量的动态变化以及注水孔与采线之间的距离关系，确定了底板破坏深度。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。