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 temperature gradient 零温度梯度
zero pressure gradient 零压力梯度
zero-pressure gradient 无压梯度流
zero-pressure-gradient flow 无压力梯度的流动
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。
OK, so, we've seen that if we have a vector field defined in a simply connected region, and its curl is zero, then it's a gradient field, and the line integral is path independent.
一个向量场,如果定义在单连通区域并且旋度为零，那么它就是一个梯度场，并且其上的线积分与路径无关。
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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