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Palaeogeomorphology is a main factor to control the development and distributing of the sedimentary facies like the geomorphology today which is affected by the factors such as the location of the area tectonics, weather, the change of the datum plane and the tectonics movements.

古地形地貌是控制一个盆地后期沉积相发育与分布的一个主要因素,同现在地貌一样,古地貌形态受到了所处的区域构造位置、气候、基准面变化及构造运动等因素综合作用的影响。

Alkylphenols are applied widely as the rubber additives surfactants in domestic and industrial products, antioxidants and so on. As it's decomposer, nonylphenol has a steady chemical characteristics and exist widely in environment. As it's molecule structures are similar as 17beta-estradiol in human body, and it can combine with estradiol receptor simulating it, disrupt endocrine system and induce health damage effect. Many studies on environmental endocrine disrupting chemicals approved that NP have weaken estradiol functions.

烷基酚被广泛用作塑料增塑剂、农药乳化剂、纺织行业的整理剂等,作为其降解产物壬基酚(nonylphenol,NP)的化学性质稳定,环境分布广泛,由于其分子结构与人体内雌二醇的分子结构相似,许多环境内分泌干扰的实验研究结果证实壬基酚具有雌激素样作用,可以模拟雌激素与体内雌激素受体结合,干扰机体的内分泌代谢,导致健康危害效应。

There are some general laws about this agglomeration and dispersion process. The moving out of firms recently from Dongwan, Guangdong Province indicates that the deconcentration and upgrating oppertunity appears in manufacturing industry in some places.

近几个月广东东莞等地出现的企业迁出潮预示着我国产业分布梯度转移与升级的时机可能正在到来。

The selection of geological prospecting in different stages(initial-prospecting, detailed-prospecting)(2)the selection of geological prospecting in the deep-laid and shallow-laid of tunnel project (3)the selection of geological prospecting of tunnel projecting in different geological conditions Finally, the author summed up main problems needing to be solved in tunnel engineering geological prospecting as follow:(1)differentiate stratum and find out the depth and thickness of different stratums in the tunnel section (2)find out geological structure and existence situation of fault, broken zone and weak plane (3)find out weathering level of bed rock to classify surrounding rock combining speed materials (4)differentiate stratum structure of the entrance of tunnel to judge the stability of it (5)find out existence situation and performance of ground water (6)situations of other harmful geological phenomenon In view of above problems and classification of surrounding rock, the author showed principles of rational choosing of methods in geological prospecting and counted disperse range of physical character parameter value in different petrosal character, getting achievements as follow:(1)summarization of effect, merits and demerits of different geological prospecting methods in the tunnel geological investigation (2)method selection and arrangement principle of tunnel engineering geological prospecting in different geological conditions and prospecting stages (3)According to previous experience and cases, the author concluded the物性parameters most in use ,and showed the basis of selecting geological prospecting methods in different geological conditions.

论文中用几个应用实例来说明:(1)不同勘察阶段物探工作的选用;(2)深埋、浅埋隧道工程物探工作的选用;(3)不同地质条件隧道工程物探工作的选用。最后总结归纳出隧道工程物探所需要解决的问题主要有:(1)划分地层,查明隧道通过剖面的各地层深度与厚度。(2)查明地质构造,隧道轴线段有无断层、破碎带、软弱层面等。(3)查明基岩风化程度,从而结合速度资料进行围岩分级。(4)划分洞口地层结构,判断洞口稳定性。(5)查明地下水赋存情况及其活动动态。(6)其他不良地质现象存在情况。针对上述需要查明的地质问题与计算围岩分级情况,论文提出合理选用物探方法的原则,并统计了物性参数值在不同岩性中的分布范围。得出以下研究成果:(1)总结出各物探方法在隧道地质调查中的作用和优缺点。(2)得出不同地质条件下和不同勘察阶段,隧道工程物探方法选择和布置的原则。(3)根据以往工作经验和事例,对常用的物性参数进行了归纳总结,同时介绍了不同地质条件下物探方法选择的依据。

The co-Kriging method considering the altitude influences is applied to get the rainfall in grid elements. The vegetal cover and landuse conditions in regions of interest are acquired from remote sensing data. The function relationship between the maximum of soil moisture deficiency and topography index is given. The flow concentration paths of net rainfall in every grid element are gotten from DEM, which solve the problems of rainfall input and parameters grided.

利用考虑高程影响的协克里金方法确定单元网格时段降雨量;利用遥感资料获取研究区域内的植被覆盖情况、土地利用分布情况等;建立了最大缺水量同地形指数之间的函数关系,基于数字高程模型确定单元网格中净雨的汇流路径,从而解决了模型产汇流计算过程中的降雨输入和参数网格化问题。

The distributions of equipotential surface in electrostatic deflection system under different cases are given in this paper.

本文给出了不同情况下静电偏转系统中的等位面分布。

By means of a linear array CCD lightintensity distribution measuring system, via the variation of the frequency and the power of ultrasonic wave, the direction control and the intensity modulation for the laser beam can be carried out. The relation curve between acoustooptic deflexion and modulation measurement is given.

在实验中,应用线阵CCD光强分布测量仪等,通过改变超声波的频率和功率,分别实现了对激光束方向的控制和强度的调制;定量给出了声光偏转量的关系曲线和声光调制测量的关系曲线。

The evolution of tides and tidal currents on the continental shelves of the Bohai Sea, Yellow Sea and East China Sea has deeply influenced the sediment transport and deposition as well as the formation, distribution and evolution of sea bottom topography since the Last Deglaciation.

摘要末次盛冰期结束、海侵开始后渤、黄、东海陆架潮汐、潮流的演变对该区泥沙的输运与沉积,以及海底地貌的形成、分布以及演变等具有深刻影响。

In the context of signal processing it is often referred to as the unit impulse function. Note that the Dirac delta is not strictly a function. While for many purposes it can be manipulated as such, formally it can be defined as a distribution that is also a measure .

在物理上,通常用于代表脉冲函数,或者呈点分布的物理量,例如质点、点电荷等;另外,delta函数常用于表示对物理量在某点的抽样,这一点不仅在数学物理方法这样的理论学科中常用,在实际的工程通信中也很常用,这时delta函数被用作采样函数。

To accelerate the widespread of Synchronous Chip Seal and improve the operation quality of Synchronous Chipsealer, key techniques which influence the operation quality is studied detailedly, including the control of distributing quality, the dynamics characteristics of hydraulic system and the spray characteristics of asphalt nozzle of Synchronous Chipsealer.1 The factors which influence Synchronous Chip Seal quality are studied. Fiducial probability of simultaneous distribution density is advised to be used in evaluating the distribution bias and standard deviation of asphalt and aggregates simultaneously, which is more advanced than the single index evaluation method used before.2 The volume efficiency formula of asphalt pump is revised after analyzing the data of volume efficiency with mathematical statistics, which is helpful to match the asphalt spray system and control the flow out of asphalt pump accurately. With equation deduction and experiment, dynamic of hydraulic system used in Synchronous Chipsealer is studied, which lay the theory foundation on improving the stability and efficiency from design and controlling.4 Simulation on hydraulic system used in Synchronous Chipsealer is done with AMESim; the results indicate that multi-circle parallel connected hydraulic system with constant pressure power is better than that with load-sensing pressure power at present, because the latter will oscillate when the multi circles work at the same time. This conclusion has been proved during the debug of Synchronous Chipsealer.5 Asphalt nozzle characteristics, such as flat jet shape, flow distribution, are studied with experiment, the results indicate that cross quality of asphalt distributing is not increased linearly follow the increase of fan overlap level, the best point usually exists between two whole overlap level, asphalt distributing quality is better than±4% at the 2.5 overlap level, meets the superior specified in standard; The distribution quality of Synchronous Chipsealer can be increased by spray asphalt of different flow rang with nozzle of different diameter

为了加快同步碎石封层技术的推广,提高同步碎石封层设备的作业质量,本文对同步碎石封层设备作业质量的影响因素与控制方法、液压系统的动力学特性和沥青喷嘴的喷洒特性等关键技术进行了深入细致的研究:1研究了影响同步碎石封层作业质量的因素,提出了采用联合密度分布置信概率对同步碎石封层中沥青洒布量和碎石撒布量的系统偏差和标准差指标进行综合评价的方法,克服了传统评价方法只能对单一指标进行评价的缺陷;2采用数理统计的方法,研究了沥青泵的容积效率特性,修正了沥青泵容积效率公式,为沥青喷洒系统的匹配和沥青泵出口流量的精确控制提供了依据;采用数理方程推导与试验相结合的方法,研究了同步碎石封层设备液压系统的动力学特性,为从设计和控制的角度提高同步碎石封层设备液压系统的稳定性和效率奠定了理论基础;3运用AMESim软件对采用负载敏感控制和恒压控制的两种同步碎石封层设备液压系统进行仿真,结果表明:负载敏感控制的并联液压系统在多回路同时工作时,由于液压泵排量控制参考压力不稳定,容易引发液压系统振荡,恒压控制的并联液压系统是目前技术条件下比较理想的同步碎石封层设备工作装置驱动方案;该结论亦通过同步碎石封层设备装机试验得到了验证。4采用试验的方法对沥青喷嘴的喷洒特性进行了研究,结果表明:沥青洒布的横向精度并不是随着喷洒扇面重叠度的增加线性增加,其最高点通常出现在二个重叠度之间的"半重叠位置","2.5重叠"洒布时,沥青的横向洒布精度≤±4%,可以达到国家相关标准中的优级标准;同步碎石封层设备还可以根据不同洒布量情况下的流量需求,采用不同通径的喷嘴进行喷洒,提高沥青洒布精度。

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推荐网络例句

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说,如果是/否的问题回答f可看的价值观念在许多最有限坐标,然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明:基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小,它既能去除奇异点,又能保持图像中目标的边缘不变性,具有很好的滤波效果。

It explains in detail how the methods of elicitation, discussion, and induction are to be used in the physics teaching.

本文根据心理学原理论述了改革初中物理教学的必要性,并对"启发、讨论、归纳法"在物理教学中的应用作了详细的阐述。