When using Enchanting Table with Yoyo in hand, will throw yoyo and cannot look up items' descriptions.

I'm not sure what you mean by "cannot look up items' descriptions."
Also, I can open enchanting tables just fine with a yoyo in my hand, what version of the mod are you using?

Yoyo not in hand, when cursor hovered, show description

Yoyo in hand, show nothing

Yoyo is thrown at the same time, but in fact I only want to use enchanting table. Also I tested FIshing Rod, sadly has the same problem. So its not a Issue caused by Yoyos.