It talks about the conservation of energy.
它讲的是能量的守恒。
Who discovered the conservation of energy?
谁发现了能量守恒？
The conservation of energy does not require that a system be isolated.
能量的守恒并不要求系统必须是孤立的。
Well, the word conservative comes from the idea in physics; if the conservation of energy.
“守恒”这个词来自于物理学;,如果说能量守恒。
Fifth, we must vigorously promote the conservation of energy resources production and consumption patterns.
五要大力倡导节约能源资源的生产方式和消费方式。
Thus, the conservation of energy may be one of the most important constraints for oceanic general circulation models.
因此，能量守恒应当作为大洋环流模式的重要约束之一。
Now, in physics we do believe very strongly in the conservation of energy, not necessarily in the conservation of kinetic energy.
在物理中我们并非坚信，能量是守恒的，这并不是一定的，动能不一定守恒。
In this paper not only the equation based on the conservation of energy is derived, but also the flow profile and the states of flow are analyzed.
本文不但基于能量守恒原理推得了变量流的基本微分方程序，而且对其水流剖而形式及流态作了分析。
We've done this before-- this is the conservation of energy, and in order to find the period of the simple harmonic oscillation, we take the time derivative.
以前算过-,这是能量守恒，为了算出,简谐振荡的周期，我们求时间导数。
“I am such a strong believer in the conservation of energy that I am willing to risk my life for it, ” he says. “If I am wrong, then this will be my last lecture.”
“我是如此相信能量守恒以至于愿意用生命为之冒险”，他说，“如果我错了，这就是我的最后一课。”
These days conservation is all about efficiency: getting the same—or better—results from just a fraction of the energy.
如今，节能的关键是效率：如何仅用一小部分能源就能达到同样或更好的效果。
QYKJ survives with the oath of professionalism, devotement, concentration, completeness, quality and energy conservation.
清阳洁净科技谨以专业、专注、专心、全面、品质、节能为生存格言。
There must be something fundamentally wrong with the conservation of mechanical energy.
肯定有什么，基础性的错误，这个机械能守恒定理。
Design and testing of these physical systems rely on standard design practices that employ the laws of conservation of force, mass, and energy.
这些物理系统的测试依赖于对作用力、质量和能量守恒定律的标准设计实践。
So when an experiment seems to violate the law of energy conservation, we are rightfully suspicious.
因此呢，当(我们做的)实验违背了能量守恒定律的时候，我们有充分的理由来质疑它。
We didn't even talk about it when we did the conservation of mechanical energy.
我们甚至没有讲过它,当我们运用机械能,守恒定理的时候。
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。
On the other hand, were time symmetry to break down, conservation of energy would fail.
另一方面，如果时间对称性被破坏/不再成立，能量守恒就也随之不再成立。
We believe in the conservation of mechanical energy.
我们相信,机械能守恒定理。
Nonprofit organizations also supply grant money for emerging technology that enables the production and conservation of energy.
非盈利组织也提供大量资金在新兴技术上，为了能够使得成果成为可能并且节约能源。
It follows immediately from the conservation of mechanical energy.
它紧跟着，机械能，守恒定理而产生。
Third, to establish a partnership in energy and environment and increase cooperation in the fields of energy conservation, environmental protection, new energy and green economy.
第三、建立能源和环境伙伴关系，加大在节能环保、新能源、绿色经济领域合作。
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？
So this is the conservation of mechanical energy.
因此这是，机械能守恒。
So this is the conservation of mechanical energy.
因此这是，机械能守恒。
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