漂移

When the total angular momentum is zero, the attitude motion equations take on nonholonomic constraint.

系统的控制问题可转化为无漂移系统的非完整运动规划问题。

Local polynomial estimation method is a kind of a nonparametric estimation methods which are based on data-analytic approaches.

我们提出了时齐的扩散过程的漂移项和扩散项的局部多项式估计。

The influence of the signal power, the signal ER, the probe power, the probe wavelength and the drive current of the SOA on λ pk,s and the improvement of the ER is studied in detail by using the multisection model, and considering the nonsymmetry of the gain profile and the shift of the gain peak wavelength along with the carrier density.

采用分段模型，考虑了SOA中增益谱的不对称性以及增益峰值波长随载流子密度的漂移，深入研究了信号光功率，ER，参考光功率，波长以及SOA注入电流对选择信号光波长λpk，s以及消光比改善量的影响。

On the basis, with model reference adaptive method, the rotating speed estimation for vector control system with no-peed sensor is studied. In addition, aiming at the problem that the reference model is easily influenced by the initial value and drift of integral in normal speed recognizer, the traditional MRAS is improved, and modeling simulation is also conducted.

在此基础上，应用模型参考自适应方法，对无速度传感器矢量控制系统的转速估计进行研究，并针对常规速度辨识器中的基准模型易受积分初值和漂移影响的问题，对传统的MRAS方法进行改进，并对其进行建模仿真。

India's defining geological processes commenced seventy-five million years ago, when the Indian subcontinent, then part of the southern supercontinent Gondwana , began a northeastwards drift —lasting fifty million years—across the then unformed Indian Ocean .

印度次大陆的地质构造的形成在七千五百五年前就开始了，随后南部的冈瓦纳大陆沿东北方向漂移，这个地质构造过程持续长达五千万年，跨过未形成的印度洋，抵达欧亚板块并和欧亚板块发生碰撞，最后升起形成这个星球上最高的喜玛拉雅山脉，该山脉目前位于印度的北部和东北部。

As Africa, drifting northwards, collided with the southern edge of Europe.

原因是非洲板块向北漂移，与欧洲南麓相撞

Drift entrance pupil in laser scanning system is studied in this paper, detailing in rotated octahedron mirror.

在近代激光测试技术中多面体旋转反射扫描测试系统存在入瞳漂移的问题，带来测试误差，然而经典资料中均未作讨论。

Architectural Culture drift on the study of cultural development pace of modern architecture is of important significance.

建筑文化漂移的研究对于研究现代建筑文化发展节奏有着重要的意义。

An adaptive intra-refresh scheme is presented based on the relation between drift error and motion activity of inter-coded blocks.

根据漂移误差与帧间编码块的运动活动性的关系，提出了一种自适应帧内刷新方法。

Based on the one-dimension two-phase drift flow model, the simulation of system characteristic under HTRL-5 condition was performed.

基于一维两相四方程漂移流模型，采用数值模拟的方法对5MW低温核供热堆热工模拟回路（HTRL-5）的自然循环进行模拟，分析在自然循环系统中存在的分岔特性及其参数效应。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐