Many oversees container shipments are 'floor loads'. what does the term "floor load" mean?

To floor load an overseas container ship means to load the container with freight from the floor up, rather than on pallets. a fully floor loaded container ship can hold more freight than a palletized load, but the containers take longer to load and unload.

acoustic energy and mechanical energy

Explanation:

each type of sounds has to be tackled in their own way.