交通量增大，这就需要拓宽道路。
交通事故的数字与交通量的增长成正比。
The number of accidents is proportionate to the increased volume of traffic.
正在修建新的道路以应付增加了的交通量。
New roads are being built to cope with the increased volume of traffic.
研究表明，在美国，将道路的规模扩大一倍，只会使交通量增加一倍，这样我们又回到了事情的起点。
In the US, studies have shown that doubling the size of a road can simply double the traffic, taking us back to the starting point.
在线液相色谱-质谱联用法是一种高通量的方法，用于分析生物流体中的小分子。
On-line liquid chromatography-mass spectrometry is a high throughput method for the analysis of small molecules in biofluids.
通常根据底物水平的磷酸化和糖酵解通量的估计来估计能量供应。
Energy provision is usually estimated from estimates of substrate-level phosphorylation and glycolytic flux.
研究了光通量和昼夜温差对自养培养马铃薯试管苗生长的影响。
The effect of PPF and DIF on plantlet growth of potato in vitro under photoautotrophic condition was investigated.
求通量的线积分就变成这样了。
来看看更多的取通量积分的方法。
那么现在直接计算通量就变得更难了。
Well, then it becomes harder to calculate the flux directly.
这和其他通量积分是一样的。
我不需要真的计算通量积分。
我们需要计算通过s的通量。
我们需要计算通量的积分。
一个是要取通量的向量场。
每当做通量的曲面积分时，你要做两件事。
Whenever you do a surface integral for flux you have two parts of the story.
让我们考虑关于S1和S2的通量积分的比较。
Well, let's think about comparing the flux integral for S1 and the flux integral for S2.
通量之所以为零，是因为根本没有东西通过曲面。
Flux is going to be zero because nothing passes through the surface.
记得之前我们曾经学过，二维空间中曲线的通量。
Remember not so long ago we looked at flux of a two-dimensional field of a curve.
在三维空间中，通量由流体所通过的表面来度量。
In the three-dimensional space, flux will be measured through a surface.
我们想要找出，电场对于一个封闭曲面向外的通量。
Let's say that we want to find the flux of the electric field out of a closed surface.
最后，磁通量随时间改变，产生了我们叫做电压的参数。
Finally, magnetic flux varies with time, leading to the quantity we call voltage.
注意，我们一直在描述，通量就是流过曲面的流体的量。
Remember, we've been describing, flux means how much fluid is passing through this surface.
“我估计他们挑选了一个非常大的[甲烷]通量，”他说。
"They picked a very large [methane] flux, in my estimation", he says.
电荷和电流，磁通量和电压，根据它们的解释关联在一起。
Charge and current, and magnetic flux and voltage, are connected through their definitions.
这份月刊只有16页，流通量很小，也没有广告。
The journal was published monthly and consisted of sixteen pages with a small subscription base and no advertising.
如果想用单位法向量来计算通量，还得先把它标准化到单位长度？
Now, if you wanted the unit normal vector to compute flux, then you would just scale this guy down to unit length, OK?
此外，许多现有的机场也将扩建以便应付日益增多的交通量。
In addition, many existing airports are being greatly expanded to cope with increasing traffic.
散度定理为我们提供了一种，计算向量场通过闭曲面的通量的方法。
So, the divergence theorem gives us a way to compute the flux of a vector field for a closed surface.
需要指出的是，如果要分别计算两边的积分，这就是标准的通量积分。
But, what I want to point out is if you have to compute the two sides separately, well, this is just, you know, your standard flux integral.
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