analysis of the intellectual roots of helmholtz's paper named "on the conservation of force"

about 15000 american tourists visit africa on hunting safaris every year, according to conservation force, a nonprofit group that advocates responsible hunting.

根据倡导良心狩猎的非营利组织“保护力量”（Conservation Force）提供的数据，每年有1.5万名美国游客前往非洲进行狩猎游。

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the conservation and transformation of movement are a basic law in nature.

物质运动在量上的守恒和在质上的转化是自然界的一条基本法则。

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compared with the prewar conservation movement, the postwar environmental movement had some remarkable characteristics, and it had tremendous influences on the social economy, people's environmental consciousness, the environmental protection practice and many other aspects.

与战前的资源保护运动相比，战后美国环保运动具有显著的特点，并且环保运动对美国的社会经济以及人们的环境意识和环保实践等诸多方面都产生了很大的影响。

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conservation movement is a product of american society progress.

美国的自然资源保护运动是美国社会进步的产物。

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this paper has proved that the system consisting of the moving charge particles is still complied with the law of conservation of momentum, if, in addition, the momentum of the electromagnetic field is considered.

在考虑到运动的带电粒子的机械动量的同时，也考虑到电磁场的能量和动量，从而证明了，在运动的带电粒子和电磁场组成的系统中动量仍然是守恒的。

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or newton's cradle, a row of dangling metal spheres that knock against one another, sending the end members flying in demonstration of newton's law of conservation of momentum.

或是牛顿摆（Newton's Cradle）。牛顿摆是一排悬挂的金属球，它们互相碰撞，将末端的球弹出，展示了牛顿动量守恒定律。

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when the motion tracks of two objects intersect, they may collide and have interference. before and after their collision, they meet law of conservation of momentum and law of conservation of energy.

两个物体的运动轨迹相交时，将发生碰撞、干涉，在碰撞前后满足动量守恒和能量守恒定律。

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as the dynamics of free-floating space manipulator basing on the law of conservation of momentum have the characteristics of nonlinear parameters, some controls based on the linear parameters model can not be applied in this model.

基于动量守恒法则的自由飘浮空间机械臂动力学具有非线性参数的特性，所以，基于线性参数模型的控制方法在这个模型中不能直接应用。

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steady condition and law of conservation of momentum are used to explain that total directional movement momentum of all charge carriers through arbitrary intersecting surface is conservative;

运用稳恒条件和动量守恒定律说明了稳恒电路中，穿过任意横截面的全部载流子的定向运动总动量在数值上是守恒的；

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taking account of the conservation of momentum and heat flux, fam is applied to obtain the similarity functions of velocity, temperature and turbulent kinetic energy.

考虑到动量及热通量守恒条件，应用有限分析法给出了速度、温度和湍动能的相似函数，以及湍动能平衡图。

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and what about newtonian mechanics, for example the law of conservation of momentum, that has such a natural elegant simplicity to it.

那么牛顿的机械学呢，比如动量守恒定律，它可以给出一个自然、朴素、，简单的解释。

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the relationship that is obtained between the axial shaft line velocity and the forget distance by the law of conservation of momentum is verified with the experiment.

运用动量通量守恒定律，推导了轴心动压随靶距变化的关系式，并用试验作了验证。

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based on conservation of momentum and orbital angular momentum, the formulas for the torque along x, y and z direction are derived.

根据动量和角动量守恒定理，推导了微型物体在x、y和z方向上受力旋转的力矩公式。

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by use of conservation of momentum and energy combined with the characteristic of explosion, the finite element method which simulates the phenomena in explosion is developed.

从动量和能量守恒方程出发，结合爆炸动力学的特点，建立适于模拟爆炸动力学过程的有限元方法，并对两个问题进行了模拟计算。

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special cases, such as conservation of momentum, conservation of angular momentum, and conservation of energy in quantum mechanics, are discussed.

本文介绍了我们最近试验成功的用气垫导轨定量验证角动量守恒定律的新实验，该实验具有简明易做、误差小的特点。

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for conservation of momentum, the atom must recoil with a momentum of this magnitude in the opposite direction.

因为动量守恒，原子必然以这样大小的动量向相反方向反冲。

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okay, conservation of momentum.

下一个，动量守恒。

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the principle of conservation of momentum holds whatever the nature of the internal forces, conservative or not.

动量守恒原理则不管内力的性质如何（保守的或非保守的）都能适用。

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the exact statement of the law of conservation of momentum and the law of conservation of moment of momentum

动量守恒定律和动量矩守恒定律的正确表述

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so, you see, that's exactly how you can demonstrate the conservation of momentum.

你看，这正是，验证动量守恒的方法。

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