查询词典 mechanics

This paper gives a review of the modern developments of the Newtonian theory of gravity, i.e.the post Newtonian mechanics or metric theory.

本文综述了牛顿重力理论的近代发展，即后牛顿力学或度规理论，並简述了它的现代应用成果。

Similarly the possibility of describing the world by means of Newtonian mechanics tells us nothing about the world: but what does tell us something about it is the precise way in which it is possible to describe it by these means.

同样，世界可以用牛顿力学来描述，这关于世界并无所说；但是恰如实际上所用的描述世界的这种确定方式，却告诉了我们关于世界的某些东西。

We are all deeply conscious today that the enthusiasm of our forebears for the marvelous achievements of Newtonian mechanics led them to make generalizations in this area of predictability which, indeed, we may have generally tended to believe before 1960, but which we now recognize were false.

现在我们都深深意识到，我们的前辈对牛顿力学的惊人成就是那样崇拜，这使他们把它总结成一种可预言的系统。而且说实话，我们在1960年以前也大都倾向于相信这个说法，但现在我们知道这是错误的。

The research scope of this paper includes:(1) According to the vehicle motion parameters, the 9 degrees of freedom vehicle brake model has been established by utilizing Newtonian mechanics, which can be reduced step by step to a double-wheel vehicle brake model and to a single-wheel vehicle brake model.

为了改进传统的逻辑门限ABS的局限性，本文对基于滑移率的汽车防抱死制动系统的上述关键技术及实现方法进行了研究，并以研究成果为基础完成了相应工程项目的研制任务。

Newtonian mechanics is correct in low speed inertial system.

牛顿力学只适用于低速惯性系

Key words: Newtonian mechanics; Methodology; Philosophical thinking; Law; Build and develop

核心提示：牛顿力学的方法论及其哲学思想摘要：牛顿代表了1个时代——现代经典科学奠基和发展的时代。

Economics is not a straightforward discipline like Newtonian mechanics or Euclidean geometry.

经济学不像牛顿力学或者欧几里德几何，它不是门直观的学科。

Traesoell C,Noll W;The Non-linear Field Theories of Mechanics;Springer-Verlag;1992

德冈辰雄著；理性连续介质力学入门；科学出版社；1982

Research on the behavior of FGM structures not only benefits the development of mechanics of nonhomogeneous materials, but also satisfies the needs of practice.

对FGM结构力学行为的研究，既有丰富非均匀材料力学的需要，也有实际工程应用的需要。

Matrices, Vector and Vector Calculus, Newtonian Mechanics-single Particle, Oscillations, Nonlinear Oscillations and Chaos, Gravitation, Some Methods in the Calculus of Variations, Hamilton's Principles Lagrangian and Hamiltonian Dynamics, Central-Force Motion, Dynamics of a System of Particles, Motion in a Noninertia Reference Frame, Dynamics of Rigid Body.

矩阵和向量的计算、单一质点的牛顿力学、线性与非线性的振动运动、重力、微积分上的变分法介绍、哈密顿原理、拉氏及哈氏力学、连心力下的运动、质点系的运动力学、在非惯性坐标中的运动、刚体的运动。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。