All existing supplies of helium ought to be conserved and released only by permit, with medical uses receiving precedence over other commercial or recreational demands.
现有的所有氦供给应该被保存下来，并且只有在获得许可的情况下才能释放，医疗用途优先于其他商业或娱乐需求。
Firstly, all existing supplies of helium ought to be conserved and released only by permit, with medical uses receiving precedence over other commercial or recreational demands.
首先，所有现有的氦供应应该被保存下来，并且只有在获得许可的情况下才能释放，医疗用途应优先于其他商业或娱乐需求。
Other churches were conserved in previous years.
其他教堂则在前几年得以保存下来。
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。
Within seven years of excavation, the Dover boat had been conserved and displayed, but it was apparent that there were issues that could not be resolved simply by studying the old wood.
经过长达7年的挖掘，多佛的船得到了保护和展示，但有些问题显然不能只通过研究陈旧的木材来解决。
Momentum, however, was conserved.
但动量却守恒。
To mitigate it, natural forests must be conserved.
为减小其影响，天然森林就必须得到保护。
Momentum is conserved, and that's called the conservation of momentum.
动量守恒，这就叫作动量守恒。
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。
Conserved Energy - fewer belongings means we have fewer possessions to worry about.
节省精力——所有物越少意味着我们担心的东西就越少。
We can't use a conserved region of the influenza virus to protect against HIV or hepatitis C.
我们不能用流感病毒的保守部分来预防艾滋病和肝炎。
That momentum must be in the wall — it's nonnegotiable, because momentum must be conserved.
那么墙壁也定有动量-，这是毫无疑问的，因为动量是守恒的。
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。
We would only provide the conserved stalk-or the conserved portion-of the virus's hemagglutinin.
我们只需要提供病毒的血凝素中的保守柄——也就是不变的那部分。
A similar approach to those two viruses is always possible if one can identify the conserved regions.
对付这两种病毒也有可能有类似的解决方法，只要有人能够识别出他们的保守部分。
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。
The biological resources conserved in one country could be very valuable to another country, another continent.
保存在一个国家的物种资源对另一个国家或是另一个大陆来说非常重要。
It's just during the impact I claim that to a reasonable approximation, momentum will have to be conserved.
也就在反应期间,我有个合理假设，动量是守恒的。
I told you I chose the case of - a completely elastic collision — Q and so kinetic energy must be conserved.
我说我选择这个例子，它是完全弹性碰撞-，为0,Q, is, zero——，那么动能必然守恒。
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。
With no hard drive, and a switch to turn off the wireless connection (not the fastest in the world), power can be conserved.
网簿没有硬盘驱动器，有一个转向无线连接的开关(不是世界上最快的)，能节约用电。
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 series of discoveries by different groups of researchers have zeroed in on a highly conserved (nonmutated) region of the virus.
不同的研究团体的一系列发现都集中在这种病毒非常保守（不变异）的部分。
He thinks that studying these conserved circuits will be more helpful in revealing how we process the needs that we express as feelings.
他认为研究这些封闭的电路更有助于揭示出我们是如何处理所谓的感情的。
He thinks that studying these conserved circuits will be more helpful in revealing how we process the needs that we express as feelings.
他认为研究这些封闭的电路更有助于揭示出我们是如何处理所谓的感情的。
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