Actually, what that would say, and we are going to see more about that so not very important right now, but what we would see is that for a close surface we would end up getting zero for the flux.
也就是这样了，现在来看点没那么重要的东西，对于一个封闭的曲面，如果通量为零。
And now archaeologists have turned up some of those ancient medicines, which were preserved in a shipwreck for close to two millennia.
现在考古学家找到了一些古时候的药物，它们被保存在遇难船只里近两千年了。
Now, despite a global bear market for equities, there are signs the U. s. might be poised to catch up-insofar as their losses are close to equaling those of their non-U. S. counterparts.
而今，尽管全球股票市场处于熊市，有迹象表明美国股票可能将会赶上-他们的损失与他们的美国以外的同行相比已经接近。
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