查询词典 differential geometry

Invariant Manifold: An unstable periodic orbit in a Hamiltonian system (a general class of differential equations which includes the three body problem) have associated two families of orbits forming tubes connected to the periodic orbit.

不变流形：一个不稳定的周期轨道的哈密顿系统（一个微分方程一般类，其中包括三个体问题）有关联的两个形成连接管轨道周期轨道的家庭。

In the first section,the existence of solution for a class of non-linear systems with three -point boundary problem is obtained by applying the differential inequality theory .

在第一部分中，我们应用微分不等式理论证明了一类非线性系统三点边值问题解的存在性；在第二部分中，运用微分不等式理论研究了一类带有转向点的拟线性奇摄动边值问题的非单调内层解；在第三部分中，利用对角化方法研究了一类向量二点或者三点边值问题解的存在性，并获得解及它的一、二阶导数的渐近估计。

Recent studies have shown that mean platelet volume is a good indicator for BM disease in the differential diagnosis of thrombocytopenia.

近期的研究表明平均血小板体积是血小板减少症鉴别诊断中骨髓病的一个良好指标。

Three methods are applied to compute the time delay between differential signal and health signal.

详细介绍了这3种时间延迟估计方法的原理以及损伤定位结果的分析。

Objective To investigate the role of multiphasic spiral computed tomography in the differential diagnosis of small renal cell carcinoma.

文章摘要：目的评价螺旋CT多期扫描在小肾癌诊断和鉴别诊断中的价值。

Roots as material, a tight tonoplast preparation with high purity was isolated by differential centrifugation and sucrose density gradients centrifugation.

根为材料，采用差速离心和蔗糖密度梯度离心法分离纯化液泡膜。

In addition to these gages for product internal threads, the Standard also covers differential gaging and such instruments as pitch micrometers, thread-measuring balls, optical comparator and toolmaker's microscope, profile tracing instrument, surface roughness measuring instrument, and roundness measuring equipment.

除了这些测量产品内部螺纹的量规之外，这个标准还涉及了不同的测量方法及仪器，如螺距千分尺，测量螺纹的球，光学比较仪，精密工具制造者用的显微镜，剖面扫描图仪，表面粗糙度测量仪，及圆度测量仪。

And then, by regarding the curve and surface as a map from differential manifold to topological manifold, we present the framework of GRPCS and discussed its basic properties in detail. GRPCS provides a unified framework for parametric curve and surface.

然后通过势函数来构造微分流形上的单位分解，将曲线曲面看作微分流形到拓扑流形的映射，给出了广义有理参数曲线曲面的整体理论框架，并对广义有理参数曲线曲面的基本性质进行了讨论。

In consider drilling rod state, hole state, creep into course influence foundation of parameter synthetically, the drilling rodmodel under acting on the pulling force and torsion together carries on the theory to calculate, receive drillingrod pulling force and torsion differential equation group, in order to benefit drilling rod strength further to analyse.

在综合考虑钻杆状况、钻孔状况、钻进过程参数的影响基础上，对拉力和扭矩共同作用下的钻杆模型进行理论计算，得到钻杆拉力一扭矩微分方程组，以利于钻杆受力的进一步分析。

Though establishing kinetic differential equation system and solving, the natural frequency, the angle displacement and torsional vibration force moment can be known.

烧结机驱动装置属半悬挂非对称型柔性传动，为利用动力学的观点分析解决设备故障问题，将系统简化为四质量系统力学模型，通过建立运动微分方程组并求解，可得到系统的固有频率、扭振的角位移和扭振力矩。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。