“The fossil record continues to show that the origin of modern placental mammals postdates or is at the Cretaceous-Paleogene boundary, ” he said.
他说：“化石记录一再证实现代胎盘类哺乳动物的起源是在白垩纪-早第三纪分界点的时候或那之后。
The numerical computations have been made using difference method for difference characteristics and boundary conditions. The computation results show the state features of radon field in space.
针对模型的特点及其边界条件用差分法分别进行了数值计算，结果表明陷落柱氡气场的空间形态分布特征。
The results show that the higher-order, fast multipole boundary element method can be applied to large problems with high numerical accuracy for engineering designs.
研究结果表明，高阶快速多极边界元法易于分析此类大规模问题，并具有很高的数值计算精度，满足工程设计的要求。
A new approach to extract corners on the boundary was proposed. theoretical and experimental show that the algorithm is antinoise strongly and the corners are stabile.
摘要给出两种新的提取图像边界角点的新方法。理论和实验表明，算法具有较强的抗噪性，而且提取出的角点稳定。
The results show that CFD simulation result for fire is accurate enough if only the equation model is correctly selected and the boundary conditions are accurately set.
结果表明，如果方程模型选用恰当，边界条件设置合理，CFD模拟火灾的结果是能够令人满意的。
The measurement results show that there is really a distortional boundary layer displacement surface on the ground board, and it fully differs from natural growing boundary layer on the ground board.
测量结果表明：在地板上确实存在一个畸变的附面层位移面，它与自然增长的地板附面层截然不同。
We show existence results for multiple sign-changing solution for third-order two- point boundary value problems by using the fixed point index and the topologic degree theory.
主要研究一类三阶两点边值问题变号解的存在性和多重性，利用不动点指数和拓扑度理论等得到了新的结论。
Numerical computation results show that it is a simple and effective absorbing boundary condition.
设计一种简单、精确、高效的吸收边界条件是很有难度的。
This paper is devoted to show the null exact controllability for a class of nonlocal parabolic equations with equiv-valued surface boundary condition.
本文讨论了具有等值面边界条件的抛物型方程的非局部的精确零能控性问题。
The influence of main flow nonparallel and pressure gradients is considered to show the physical characteristics of flat boundary flow.
为更好反映平板边界层流动的物理特征和本质，该文同时考虑到主流的非平行性和压力梯度的作用。
Then, some examples are given to show that the nonlinear boundary control considered in this paper is efficient and practical.
然后用例子说明文中所给出的非线性耗散边界反馈控制具有较强的实用性。
Theoretical and computational research show that the Boundary Element method (BEM) is an economical and efficient numerical method for computing complex field of the charged ore body.
理论计算研究表明，对于复杂条件下任意形状的充电矿体的充电场的研究，边界单元法是一种经济有效的数值计算方法。
Numerical simulations demonstrate that the whole property and the boundary of image area show better vision effect with a test to synthetic image and real MR brain image.
用模拟图像和MR图像进行实验，区域的边界和整体属性具有较好的视觉效果。
The theoretical analysis and experimental results show that boundary layer separation will produce pressure drag.
理论分析和实验的结果说明：边界层分离将引起压差阻力。
The results show that Widmansttten structure needle consists of many blocky subgrains that have higher dislocation density and subgrain boundary is made up of dislocation tangle.
结果表明，魏氏组织针由多个块状的亚晶粒组成，亚晶粒边界由位错缠结而成，在亚晶粒内有较高的位错密度；
The results show that there is a relatively large deviation for calculating results under two kinds of boundary conditions.
通过对土壤和铀尾矿的具体计算，表明两种边界条件下的计算结果有较大的偏差。
The results of the experiments show that, compared to GVF, IGVF can achieve better results with less number of iterations for images with long and thin boundary concavities.
实验结果表明，相比与GVF方法，IGVF方法对边界复杂且具有又深又细凹口的医学图像分割效果良好，且迭代次数少。
The numerical results show that higher spline weight functions in the local boundary integral equation method have excellent properties.
算例表明，高阶样条权函数在局部边界积分方程方法中有好的收敛性、稳定性和精度。
The examples presented clearly show the effect of nonparallel flow on boundary layer stability.
通过算例，清楚地显示了流动的非平行性对边界层稳定性的影响。
In this paper, we deal with a parabolic system with nonlocal sources. To a blow-up solution, we establish its precisely blow-up rate estimation and show its boundary estimation.
考虑一类具有非局部源项的抛物型方程组，首先建立了爆破解的爆破速率估计，并在此基础上给出了爆破解的边界层估计。
The results show that the properties of grain-boundary states in recrystallized polysilicon films sharply depends on the crystallographic structure of the films.
实验结果表明：多晶硅薄膜的晶粒界面态和硅离子注入后多晶硅薄膜的晶粒组成结构是密切相关的。
The results show that main cause of conchoidal fracture forming is that composition segregation in solidification grain boundary of casting steel reduces the resistance of crack propagation.
结果表明，沿一次晶晶界的成分偏析对裂纹扩展阻力的降低作用是铸钢中贝壳状断口形成的主要原因。
The experiments show that the grain-boundary are obtained while the fake edges are restrained, which makes a nicer condition for grain size analysis.
实验结果显示，该方法在有效抑制伪边界的同时提取出了比较理想的晶界，为晶粒度分析创造了良好的条件。
Experimental results show that shot boundary detection methods, based on the shot boundary coefficient model, can improve the performance of shot boundary detection.
实验结果表明，基于镜头边界系数模型的镜头边界检测方法能明显改善镜头边界检测结果。
The results show that the boundary layer scheme in atmospheric model may play an important role in simulating concentration of dust storm.
通过分析，作者认为大气模式中的边界层模式差异对沙尘暴中沙尘浓度的模拟能产生较大影响。
The results show that constant boundary elements have higher accuracy than linear triangular finite elements when they have the same length of side.
结果表明，单元边长相同时，常数边界元比三角形线性有限元的精度要商。
Extensive experiments carried out on TRECVID2007 database show that the proposed approach works well in detecting shot boundary measured by both recall and precision.
通过对TRECVID 2007数据库进行实验的结果表明，该算法在查全率和查准率方面都获得了较好的性能。
The results show that under shear stresses there are a group of boundary layer solutions near the interface or the fixed boundary.
结果表明，在剪应力作用下，在界面附近和固定边界附近存在一组边界效应解。
The calculation results show that the boundary element method possesses some advantages, such as less work, higher accuracy and wider use.
实例计算的结果表明，边界单元法具有工作量少、精度高、适应性强的优点。
Examples are presented to show that significant error will occur if force boundary conditions are not satisfied. The relative importance of two kinds of force boundary conditions is compared.
通过例子表明仅满足位移边界条件而不满足力边界条件时，可能产生很大的误差，并且对两个力边界条件的相对重要性作了比较。
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