curl field 旋场 ; 旋度场 ; 有旋场
curl electric field [电磁] 有旋电场
electric curl field 电流涡旋场
Curl-free vector field 保守向量场
curl of magnetic field 磁场的旋度
That other field is given from the first one just by taking its curl So, after you take the curl, you obtain a different vector field.
另一个向量场，是通过计算第一个向量场的旋度得到的，计算旋度之后，就可以得到一个不同的向量场。
That is called the curl of a vector field.
这个量叫向量场的旋度。
OK, so let's assume that we have a vector field whose curl is zero.
假设有一个旋度为零的向量场。
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