Yes? Well, though actually it's not defined because the curl is zero everywhere else.

即使中心是没有定义的，旋度在其他地方也可以是处处为0的。

youdao

There not really defined though, just a statement that they should be there.

不过还是没有定义是怎样的策略，只是说应该要有策略。

youdao

There not really defined though, just a statement that they should be there.

不过还是没有定义是怎样的策略，只是说应该要有策略。

youdao