双语例句原声例句
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以上的解释实际默认了,把沿着n方向流过C的,都算作正值,相反方向的，算作负值。
Actually, what is implicit in this explanation is that I am counting positively all the stuff that flows across C in the direction of n and negatively what flows in the opposite direction.
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的确有可能出现往两个方向流动的情况，可以想象到，这一小部分往相反方向流动，当流体向左流时，就只能算作负值了。
But it could be that, well, imagine that my vector field accidentally goes in the opposite direction then this part of the curve, while things are flowing to the left, contributes negatively to flux.
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一月效应是从统计学角度分析股市走势的一种惯常现象，指一月份的回报率往往是“正数”，而且会比其他月份为高；相反，十二月的股市回报率很多时候会呈现负值。
January effect, a kind of usual phenomenon to statistically analyze the stock market movements, refers to the rate of return in January is often "positive" and is higher than that in other months.
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It is of opposite charge and it exerts an influence, only that is minus to plus so that is going to give me a minus term here.
它具有相反的电性，所以它也会有影响，只有这个负值相对正值来说会起到减少的作用,所以这里将会引入一个负值的量。
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