Meaning of 度に in Japanese

"By the way, do you know what a Shinto shrine is?" "I've a little bit of knowledge on the subject. It's a religious facility where that which is the object of worship, that called the genius loci, is enshrined."

The climate of this town is so mild that the thermometer seldom rises to thirty degrees, even in midsummer.

There is no room for further improvement in this system.

At this library, you can borrow up to three books at a time.

This means that houses are starting to sink, roads are breaking up and lamp-posts are leaning at crazy angles.

This elevator is capable of carrying 10 persons at a time.

You can borrow three books at a time.

Because a man whose manners are as bad as yours must try everyone's patience.

Every time I see you, I think of your father.

You can borrow three books at a time.