action & reaction demonstrator

Through concrete examples, this paper expounds such physics properties as the inertial movement, reacting force and equilibrium in playing the piano and defines its scientific property.

本文通过具体实例论证了钢琴弹奏中的惯性、反作用力、平衡性等物理现象 ,充分说明了钢琴弹奏中的科学性 ,同时也提醒我们只有运用科学的方法来弹奏钢琴 ,才能真正将钢琴这门乐器发挥到最佳水

For thin-wall box-beams prestressed element, the disadvantaged influences resulted from both possion effect and opposite acting force due to the deformation of beams is considered while the needed longitudinal prestress is acquired.

依据30m跨径预应力砼足尺薄壁箱梁的试验研究,分析了其在张拉阶段底板沿预应力钢束纵向开裂的原因,对薄壁箱形预应力砼构件,提出在考虑获得所需纵向预应力的同时,应计入泊松效应和预应力钢束对构件变形产生的反向作用力的不利影响,并从工程设计角度建立了分析模型,提出了确定预应力钢束下保护层厚度的建议公式。

It is suggested that the disadvantageous influences from both Poisson effect and opposite acting force resulting from the deformation of beams should be taken into consideration for thin-wall structures.

依据30m跨径预应力砼足尺空心板梁的试验研究,分析了其沿预应力钢束纵向开裂的原因,提出在薄壁箱形预应力砼结构设计中,在考虑获得所需纵向预应力的同时,应计入泊松效应和预应力钢束对构件变形产生的反向作用力的不利影响。

action & reaction demonstrator

作用力与反作用力演示器

Action and reaction are opposite and equal.

作用力与反作用力大小相等、方向相反。

action and reaction are equal and opposite.

作用力与反作用力大小相等，方向相反。

Simple demonstration of friction force beingthe interactive one;

“摩擦力是相互作用力”的简捷演示方案

Back Analysis of Seepage in Earth Dam Considering the Effection of Strain Fields

考虑应力场作用的土坝渗透系数反演方法研究

Demonstration of Inertial Centrifugal Force and Coriolis Force with Sand Pendulum

用沙摆演示惯性离心力与科里奥利力

reaction type brake tester

反作用力制动试验台

inertia reaction moment tester

惯性反作用力矩测试仪

Phantom Cosmology and Gravitational Back Reaction;

Phantom宇宙学和引力反作用

On the Reaction of Ideological and Political Work to the Influence of Environment;

论思想政治工作对环境作用力的反应作用力

Application of Index Method in the Estimate of Shipborne Anti-Ship Missile's Combat Capability

指数法在反舰导弹武器作战能力评估中的应用

a mill that is powered by the wind.

用风作为动力的机器。

When two bodies interact, the force which body A exerts on body B is equal in magnitude and opposite in direction to the force which body B exerts on body A.

两个物体之间的作用力b>与b>反作用力总是数值相等，方向相反，作用在一条直线上。

Effect of Allisartan on Blood Pressure Reduction and Organ Protection;

艾力沙坦的降压作用和器官保护作用

The Calculation of Internal Force and Reacting Force of Beam Affected by a Load of Couple by Using Influence Line;

利用影响线计算力偶作用时梁的内力和反力

Study on Parameter Inversion of Dynamic Soil-Box Foundation-Frame Structure Interaction System;

土—箱型基础—框架结构动力相互作用系统的参数反演研究

The reaction is the force F'exerted by the block on the man.

其反作用力F’为物块对人施加的力。

We first find the floor exerts on the passenger's feet, which is the reaction force to the force required.

首先求地板作用于乘客脚上的力，该力是我们欲求力的反作用力。