Okay, I start off, point A is at a distance h h above this level, and so I apply now the conservation of mechanical energy.
好的我开始了，点A距离这个平面,高度差，现在运用,机械能守恒定理。
Now, I am such a strong believer of the conservation of mechanical energy that I am willing to put my life on the line.
现在，我很相信，机械能守恒，我愿意把我的生命，放到这条线上。
You see it on the general exams for physics, and it's simply a matter of conservation of mechanical energy.
你会在一般的，物理考试中见到，这只是一个，机械能的问题。
I used first the conservation - of mechanical energy — there was no friction — and then I showed you that it's completely consistent with the work-energy theorem, so what would you do now?
首先，我用了机械能，守恒定律-，这里没有摩擦力-，我会向你们展示，这，和功能定理完全一致，现在你会怎么做呢？
We were able to apply the conservation of mechanical energy because spring forces are conservative forces.
我们也可以运用，机械能守恒，因为弹力，是恒力。
I believed in the conservation of mechanical energy and I overlooked the tension.
我相信，机械能守恒定理，我忽略了张力。
I was so convinced that the conservation of mechanical energy was going to work - that I almost killed myself — - not quite — with this huge, 15?
我坚信，机械能守恒定理，会起作用，我几乎杀了自己-，近乎杀了自己-，那个球大概15公斤？
Then we have the conservation - of mechanical energy — the sum of kinetic energy and potential energy.
我们知道，机械能守恒定律-，动能和，势能的总和。
And so you could have used the work-energy theorem or you can use the conservation of mechanical energy.
所以你也可以用，功能定理，或者是机械能，守恒定律。
5 times the radius, conservation of mechanical energy tells you that that is the minimum it takes to just go through that point.
5倍于半径的高度，机械能守恒定理，告诉我们照着书，要经过这点的最小值。
Occupancysensors are used as an energy conservation strategy for both lighting and mechanical systems.
感应传感器被用于照明和机械系统的节能策略中。
Occupancy sensors are used as an energy conservation strategy for both lighting and mechanical systems.
感应传感器被用于照明和机械系统的节能策略中。
The conservation law of mechanical energy in variable mass mechanical systems with ideal bilateral holonomic constraints is studied.
研究具有双面理想完整约束的变质量力学系统的机械能守恒律。
It is explained that the law of conservation of mechanical energy obeys relativity principle of mechanics.
系统地阐明机械能守恒定律无条件服从力学相对性原理。
This article analyses the meaning and prerequisite of conservation of mechanical energy, and poses different standpoints on describing the law of conservation of mechanical energy in some textbooks.
分析了机械能守恒的内涵及条件，对有的教材关于机械能守恒定律的表述提出了不同的见解。
The law of conversion of mechanical energy and the law of conservation of mechanical energy are revealed.
又一次揭示空间的机械能势转换和守恒定律；
It is pointed out that the relativity principle is satisfied by the law of conservation of mechanical energy.
指出机械能守恒定律是服从相对性原理的。
In this paper, inertia reference frame and un-inertia reference frame were studied and questions about mechanical work and conservation of energy in different inertia reference frame were discussed.
本文讨论了惯性参照系与非惯性参照系，分析了在不同的惯性参照系中做功和机械能守恒问题。
A discussion is made of the work done by static frictional force and the conservation of mechanical energy in the work doing process by way of typical cases.
本文就静摩擦力做功以及在静摩擦力做功过程中机械能守恒问题，结合实例做进一步讨论。
This paper deals with the problem of how to skilfully select spring elastic potential energy zero in applying law of conservation of mechanical energy, and makes some analyses combined with examples.
在应用机械能守恒定律时，如何巧选弹簧弹性势能零点问题进行了探讨，并结合实例进行了分析。
The paper discusses how to use the principle of conversion between work and potential energy and the law of conservation of mechanical energy in the frame of non-initial reference.
讨论了在非惯性参照系中如何应用功能原理和机械能守恒定律。
To use respectively that rigid body plane differential equations of motion, theorem of angular momentum, conservation law of mechanical energy, and the law of conservation of energy.
从时间的均匀性可推得机械能守恒定律，从空间的均匀性和空间的各向同性可分别推出动量守恒定律和角动量守恒定律。
A mechanical speed regulation method is used to solve problems above, and better electric energy conservation effection is acquired.
针对以上问题，改用机械调速方式，对存在的问题进行了解决，并取得较好的节电效果。
In this paper it is explained that the law of conservation of mechanical energy must Obey the relativity principle of mechanics.
文章系统地阐明了机械能守恒定律无条件服从力学相对性原理，若总机械能在一个惯性系守恒，它就在所有惯性系守恒。
This paper deeply analyzes the physical connotation of the Law of Conservation of Mechanical Energy, and points out the attention-worthy matters in the teaching process.
本文深入分析了机械能守恒定律的物理内涵，利用具体事例讨论并纠正了对该定律的两种常见错误认识，并指出了教学中应注意的问题。
The results show that the annealing temperature was reduced, the annealing time was reduced and the mechanical properties were enhanced, which has remarkable energy conservation effect.
结果表明：大大降低退火温度，缩短退火时间，提高力学性能，综合节能效果显著。
The utility model pertains to an energy conservation inertia machine, pertaining to inertia mechanical technological field.
本实用新型属于惯性机械技术领域，公开了一种节能惯性机。
On the problems of the mechanical energy conservation of stable compelled vibration;
定量分析了阻尼振动、稳态受迫振动的能量随时间变化的关系。
On the problems of the mechanical energy conservation of stable compelled vibration;
定量分析了阻尼振动、稳态受迫振动的能量随时间变化的关系。
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