惯性运动

The discussion emphasizes particularly on some important issues closely related to the slow manifold of the atmospheric motion such as properties of the balance dynamics, the spontaneous emission of inertia gravity wave from balance flow, theory and application of PV inversion and the relation to initialization issue of numerical model. Moreover, an overview of the history and the state of the art of researches in this field are given to provide domestic researchers of relevant topics a clue for the understanding of general picture of this field and entering into specific research issues.

文中侧重于讨论与大气运动的慢流形密切相关的一些重要问题，包括平衡运动或平衡流的性质以及它对惯性重力波的自发辐射、PV反演理论和应用、与数值模式初始化问题的联系等，并对上述研究领域的研究历史和现状也进行了较为全面的综述，旨在为国内气象界相关方向的研究者提供了解该领域概貌并较快切入具体研究问题的线索。

The discussion emphasizes particularly on some important issues closely related to the slow manifold of the atmospheric motion such as properties of the balance dynamics, the spontaneous emission of inertia gravity wave from balance flow, theory and application of PV inversion and the relation to initialization issue of numerical model.

文中侧重于讨论与大气运动的慢流形密切相关的一些重要问题，包括平衡运动或平衡流的性质以及它对惯性重力波的自发辐射、PV反演理论和应用、与数值模式初始化问题的联系等，并对上述研究领域的研究历史和现状也进行了较为全面的综述，旨在为国内气象界相关方向的研究者提供了解该领域概貌并较快切入具体研究问题的线索。

According to the second law of Newtonian, inertial mass is a physical quantity represents the difficult degree for motion state to change when object stands a force.

根据牛顿第二定律，惯性质量是表征当物体受到外力作用的时候，物体运动状态改变的难易程度，即物体保持原来运动状态的本领大小的物理量。

He personally experiment to determine the law of free-fall and found that: The object of the law of inertia, a reasonable law, such as when the pendulum vibration, the law of Motion put forward a campaigns of the principle of relativity, but also on the speed, acceleration and so on kinematics The basic concept of making a strict definition.

他通过亲自实验，确定了自由落体定律，发现：物体的惯性定律、合理定律、单摆振动的等时性、抛体运动规律，提出了运动的相对性原理，还对速度、加速度等运动学的基本概念做出了严格的定义。

Classical mechanics, but Galileo, the creator of "the embryo form of law of inertia",with the incline experiment only attested to the falsity of Aristotle's proposition that "the force is the indispensable factor to maintain object movement", and not proposed what is the indispensable factor to maintain object movement.

牛顿第一定律被认为是经典力学的最基本定律之一，但"惯性定律雏型"的原创者伽利略用斜面实验只证伪亚里士多德的"力是维持物体运动不可缺少的因素"这一命题，并没有提出什么才是维持物体运动不可缺少的因素。

In the past, the estimation of an object in motion is done by using inertial sensor. The conventional approach can not apply to the object under a linear acceleration. Although, in most cases, the object to be measured work under linear acceleration.

以往使用量测惯性的感测器所组合成的姿态估测器，大部分都只能在没有运动加速度的状态下使用，可是实际上我们想量测姿态的对象，是很难不具有运动加速度的。

Based on the projectile's geometry structure and movement characteristics, a non gyroscope inertial measurement technique using twelve linear accelerometers for the angular rate measurement and linear acceleration is presented.

基于炮弹的几何结构及运动特点，设计了一种十二加速度计组合的无陀螺惯性测量方案用于测量弹体运动时的角速度和线加速度。

This model is different from the structural dynamics model in a non-inertial reference frame with large overall motions known.

本文从力学基本原理出发，分析了刚柔耦合零次近似理论失效的原因，深入研究了有大范围运动的柔性体变形场的描述，建立了刚柔耦合一次近似的动力学模型；然后利用上述模型，从非惯性系下的结构动力学问题和大范围运动为自由的刚柔耦合动力学问题这两个层次上进行了刚柔耦合动力学建模理论与性态的研究，采用理论和实验相结合的手段来检验了一次近似刚柔耦合动力学模型的正确性。

Central-force Motion, Dynamics of a System of Particles, Dynamics of Rigid Body, Coupled Oscillations, Nonlinear Oscillations, Motion in a Noninertial Reference Frame, Continuous Systems.

力学 (0，3)/应用力学（0，3）中心力下的运动、多粒子系统动力学、刚体动力学、耦合振动、非线性振动、非惯性参考座标系中的运动、连续系统。

While the frequency can be as high as N when the particle motion is vertical, it cannot be lower than the Coriolis frequency f. In this limit, the particle motion is horizontal in 'inertial' circles, expressing the tendency for steady rectilinear motion with respect to a nonrotating reference frame.

虽然频率可高达为N时，粒子的运动是垂直的，它不能低于科氏频率楼在此限制，粒子议案是水平在'惯性'界，表达为稳定直线运动的趋势关于一nonrotating参照系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。