So, at that point, the partial derivative is zero with respect to x.
因此这点上x的偏导为零。
So the signs in the velocity and the signs in average acceleration depend crucially on how I have defined my increasing value of x not where I choose my zero points.
所以速度的符号,和平均加速度的符号,这二者都取决于,这里x正方向,是如何定义的,和0点的选取没有关系。
So, let's say that I take a unit square -- -- so, something that goes from zero to one both in x and y directions.
我现在用一个单位正方形——,在x和y方向上都是从0到1变化。
The limit of the integrand f ( x ) of abnormal integral, which is convergent in the infinite range of integration, is not certainly equal zero at infinity.
摘要无穷限反常积分收敛时，其被积函数在无穷远处的极限不一定为零。
The zero-valence iron process is a competitive method for treating reactive brilliant orange X-GN wastewater because of its high efficiency and low price.
从以上结果可见，零价铁法处理活性艳橙X-GN染料废水成本低廉，处理效果好，具有很好的应用前景。
The zero-valence iron process is a competitive method for treating reactive brilliant orange X-GN wastewater because of its high efficiency and low price.
从以上结果可见，零价铁法处理活性艳橙X-GN染料废水成本低廉，处理效果好，具有很好的应用前景。
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