集装箱 in English:

He emptied the container of its contents.

Is this container for water?

The water container is empty.

After opening, refrigerate contents in a plastic container.

Scuba diving is swimming underwater with a special container of air which a scuba diver carries on his back.

We keep screws in this container.

a food container

This container will take six litres.

This food will keep for a week in an airtight container.

The container may be the best in Japan, but if the contents are third class, then isn't it completely meaningless?