气体反应堆要求充实，以此能，达到20%，所以，我们需要制造出在芯块中的铀，那是锆管道的金属外壳，那被放置入一个反应堆核心里去。
Gas reactors require enrichments in the order of up to 20%. So we need to fabricate the uranium into pellets which are clad in zirconium tubes which are placed into the reactor core.
首先，我们需要知道，入射到气体原子的光子的能量。
The first that we need to know the energy of the photon that's incident on our gaseous atom.
随着气候变化的预测变得越来越紧急，我们迫切需要廉价、简便、快捷的方式来减少温室气体的排放。
With predictions of climate change getting increasingly urgent, we desperately need cheap, simple and fast ways of reducing greenhouse emissions.
我们要看到美国环保局立即对温室气体加以限制，我们需要看到美国对温室气体进行大刀阔斧的限制。
We need to see EPA regulation of greenhouse gases immediately and we need to see aggressive regulation of greenhouse gases.
根据IPCC(注三)，我们需要减少温室气体排放50%到80%才能使它按规划到下个世纪达到这一水平。
According to the IPCC, we'd have to reduce GHG emissions by 50% to 80% of what they're on track to be in the next century to reach this level.
这些条件能够让我们计算出气体相的组分比，这样我就得到了计算相图的所有的条件,除了我需要把x轴改y而不是。
So I have everything I need, then, to calculate and draw a diagram that looks just like this x Except where my x-axis is the y's instead of the x's.
为了尽可能防止2度的升温，我们需要在明年年底前减少10%的全球温室气体排放量，在2012年减少25%的排放(*7)。
To deliver a high chance of preventing two degrees of warming, we would need to cut global emissions by something like 10% by the end of next year and 25% by 2012.
我们需要描述实际气体，的状态方程。
For real gases. This is an equation of state for an ideal gases.
我们需要知道有多少的二氧化碳被吸收掉，了解更多海洋与大气之间的气体交换过程，以及这种机制是如何受到环境改变的影响的。
We need to know how much carbon dioxide is being taken up, more about the gas exchange between the ocean and the atmosphere, and how this mechanism is affected by climate change.
我们需要看到这些气体的变化很大耗油车辆。
We need to see a lot of change in those gas guzzling vehicles.
客户想从我们这里了解要完成降低水分的干燥功能需要多少干燥气体。
And the client would want to know from us how much dry air is needed to perform the drying function of reducing moisture.
如果我们需要更多的牛肉，那麽牛就会生产出更多的温室气体。
The more meat we eat, the more cows there are producing greenhouse gases.
若想知道更多更深层的吸收线，我们需要浓密的已经收缩的气体云。
And if we want to get these big, deep absorption lines happening far away, we need to have dense, collapsed clouds of gas.
若想知道更多更深层的吸收线，我们需要浓密的已经收缩的气体云。
And if we want to get these big, deep absorption lines happening far away, we need to have dense, collapsed clouds of gas.
应用推荐