Momentum is conserved, and that's called the conservation of momentum.
动量守恒，这就叫作动量守恒。
The architecture of the existing large area (two pools) is conserved.
原有建筑的大空间(两个泳池)被保留下来。
But momentum is conserved, because those frictional forces are all internal.
但是动量守恒，因为这里的，摩擦力都是内部的。
Angular momentum is conserved about this point Q, but only about that point Q.
角动量，在点Q守恒，也只有在点Q守恒。
By using fewer sodium channels, the signal gets dimmed and energy is conserved.
减少钠离子通道可减弱信号，从而节约能量。
This is the corollary. It's due to Clausius and it says the energy in the universe is conserved.
这是由克劳修斯得到的，这条结论说宇宙间总能量守恒。
This paper introduces a new method to deform an object, whose volume is conserved across the change.
文中所介绍的是一种用新的方法去变形物体，使其体积保持不变。
Momentum is conserved, because there was no net external force, so now kinetic energy is also conserved.
动量是守恒的，因为它不受外力，因此动能也是守恒的。
And if there is no net external force on the system as a whole during the collisions, then momentum is conserved.
若没有外力，作用于系统整体，在碰撞过程中，动量就是守恒的。
The charge is conserved not only from "before" to " after " but also at every intermediate stage of the process.
电荷不仅由衰变“前”到衰变“后”是守恒的，而且在衰变过程的每一个中间的阶段也都是守恒的。
The fundamental mechanism of transcription is conserved among cellular RNA polymerases, the researchers explained.
转录的基本机制就存在于进化保守的RNA聚合酶中。
Protein phosphatase type 2A (PP2A) is an essential protein serine/threonine phosphatase that is conserved in all eukaryotes.
蛋白磷酸酶2A （PP2A）是一种重要的蛋白丝氨酸/苏氨酸磷酸酶，在所有的真核细胞中结构保守。
Momentum is conserved, so I can m1*v1+ write down that m1 times v1 plus m2 - it is a completely inelastic collision-- *v times v prime.
动量守恒,可以写下2,这是完全-,非弹性碰撞。
So, saying that energy is conserved is as solid as saying that the laws of physics are the same now as they were in the past and will be in the future.
因此，说能量守恒，就等同于说现在的物理定律与从前的物理定律相同，到了未来也不会改变。
Kinetic energy can be converted back to potential energy, can be converted back, - but the sum of them — which we call "mechanical energy" — is conserved.
动能可以转化，成为势能，也可以转化为动能，但是总和-，我们叫做的，机械能，是恒定的。
Finding that it works in the same way in mice and fruit flies is important because it means the gene is conserved, or has evolved from "lower" to "higher" animals.
寻找这种基因在小鼠和果蝇中以同样的方式起作用是很重要的，因为它意味着这种基因是保守的，或者说是从低级动物向高级动物中进化的。
It is shown that the middle-low speed maglev vehicles used for city transportation has advantage over the wheel-rail as far as sound environment protection is conserved.
研究结果表明，中低速磁悬浮列车运行时相对于普通轮轨噪声较低，就声环境保护角度而言具有较大的优势。
Recent studies have suggested that regulation of polarity in a wide range of biological processes is through a molecular mechanism that is conserved from worms to mammals.
由于其重要的生物学意义，从低等到高等生物中细胞极性的调节机制是非常保守的。
The architecture of the existing large area (two pools) is conserved. The incline of the structure is emphasised; the subtle play of oblique lines also adds a contemporary touch.
原有建筑的大空间（两个泳池）被保留下来。倾斜的结构被凸显强调；这种微妙的倾斜为建筑增加了现代的感觉。
By comparing a portion of DNA structure across 36 different species, the team estimates that 12% of the human genome is conserved - twice the estimate based on sequence conservation.
通过对36个不同的物种的部分DNA结构进行比较，研究小组统计出约有12%的人类基因组是保守的——这是基于序列保守所统计出的数字的两倍。
The velocity of the center of mass has not changed as seen from your frame of reference, because the velocity of center of mass is always the same, remember, because momentum is conserved.
质量重心的速度，并没有发生改变，你在参照系中可以看出，因为质量重心的速度，总是保持不变，要记住，由于动量守恒。
This variant predicts the substitution of lysine at a glutamic acid residue, which is conserved across species, and showed the clearest evidence of cosegregation with stuttering in Family PKST72.
这一变异预示着赖氨酸取代谷氨酸，并且这一变异在物种间传递时也可以得到保存，这也清楚表明在PKST72家族中口吃基因的共同分离。
If I look at this result — the sum of gravitational potential energy and kinetic energy is conserved - for gravitational force — then it is immediately obvious where we put the zero of kinetic energy.
如果看这个结果-，重力势能与动能之和，在重力作用下，是守恒的-，马上，很明显的发现，动能为0的地方。
Momentum is said to be "conserved", that is, once you build it up, it has to go somewhere.
动量被认为是“守恒的”，也就是说，动量一旦被建立，就一定会转移到其他地方。
Yet his message is an important one. Forests and other eco-systems provide valuable services; and if they are to be conserved, people must pay for them.
但是他的这一信息却是很重要，森林和其他的生态系统提供了有价值的服务，如果要保护它们，人们必须的有所付出。
FOXO3A is involved in several signalling pathways that are conserved across animal species.
FOXO3A涉及普遍存在于动物物种中的几条信号传递路径。
So momentum is never exactly conserved, and kinetic energy is never exactly conserved either, so it's only an approximation.
动量并不严格守恒，而动能也从不会，完全守恒，它只是一种近似。
A fundamental law of physics holds that momentum is always conserved, meaning that unless some outside force enters a system, its total momentum must stay constant.
物理学一条基本定律认为动量守恒，也就是说，除非外力进入系统，否则总动量一定保持不变。
A fundamental law of physics holds that momentum is always conserved, meaning that unless some outside force enters a system, its total momentum must stay constant.
物理学一条基本定律认为动量守恒，也就是说，除非外力进入系统，否则总动量一定保持不变。
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