What is partially full?

Partially full is a term commonly used to describe a container, such as a tank or a bucket, that is not completely filled to its maximum capacity. The level of fluid or material inside the container is below the top edge, leaving some space unfilled. The amount of space left unfilled can be expressed as a percentage of the container's total capacity, for instance, a container that is 80% full has 20% of its capacity unfilled. The level of fluid in a partially full container can affect its stability, pressure, and other physical properties. It's important to consider the degree of fullness when measuring or handling the contents, especially in industrial applications where accurate measurements and safety are critical.