ZERO-GRADIENT ACCELERATOR 零陡度加速器
zero gradient synchrotron 零梯度同步加速器
zero gradient 零梯度
zero-pressure gradient flow 无压力梯度流动 ; 无压梯度流
internal recycling zero gradient reactor 内循环无梯度反应器
zero-gross gradient 零爬升梯度高度
zero temperature gradient 零温度梯度
zero pressure gradient 零压力梯度
zero-pressure gradient 无压梯度流
The directional derivative in a direction that's perpendicular to the gradient is basically zero.
垂直于梯度的方向上,方向导数为零。
The test that we saw last time saying, well, to check if something is a gradient field if it's conservative, 0 we just have to compute the curl and check whether it's zero.
由上次的测试可知,如果一个东西是保守的,要确定是不是梯度,我们只需要计算旋度,查看它是否是。
Well, we've seen this criterion that if a curl of the vector field is zero and it's defined in the entire plane, then the vector field is conservative, and it's a gradient field.
我们已经知道了一个准则,如果向量场的旋度为零,而且它在整个平面上有定义,那么这个向量场是保守的,而且它是个梯度场。
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