Just for your reference, in addition to getting that error in your browser, you will also get the following exception trace in the server's Console view.

给您一些参考资料，除了可能会出现刚才的错误信息之外，您可能还会在服务器的Console视图下出现异常现象。

youdao

The city accommodates about 10,000 restaurants, and the restaurants I have been to account for less than one thousandth of them. So what I say is just for your reference!

天津有一万家左右的餐厅，我去过的连千分之一都不到，仅供参考！

youdao

You'll use a numeric ID for your artists just to make it easy to reference them.

您将对艺术家设置一个数值 ID 以方便引用。

youdao

So, one thing they did, because it was so easy to measure kinetic energy of electrons, is plot the frequency of the light against the kinetic energy of the electron that's coming off here. And in your notes and on these slides here, just for your reference, I'm just pointing out what's going to be predicted from classical physics.

他们做的其中一件事,因为测量电子动能是很容易的，就是画出光的频率,和出射电子动能之间的关系,在讲义的这里，仅仅是,为了做个比较，我要指出，经典物理所给出的预测,这个不作为对你们的要求。

麻省理工公开课 - 化学原理课程节选