What could there possibly be in this refrigerated container? What was this if not a container of chilled fruits and vegetables?
This was a detachable refrigerated container, so the freezer could either be connected to the main container body or be detached from it. Generally speaking, these containers would usually be connected to the refrigerating unit when they were being transported on land. On the sea, though, the refrigerating unit would be detached.
When the refrigerated container was loaded onto the ship, the interior of the container was actually being chilled by the refrigerating compartment on the ship. The compartment was connected to the refrigerated container through a cold air pipeline system that made the refrigerating much more effective.
Li Du saw all of this the moment one of the little bugs flew in.
Luckily for him, the little bug had an awesome ability, which was automated precision guidance!