What does the term intraline refer to in munitions operations?

The term "intraline" refers specifically to the distance between two explosives operating locations. This terminology is critical in munitions operations because it helps define safety zones and operational boundaries during handling, storage, and transportation of explosive materials. Proper understanding and application of intraline distances ensure that explosive operations are conducted safely, minimizing the risk of accidents or unintended detonation due to proximity to other operations.

The other options pertain to different aspects of safety and operational guidelines but do not correctly define the term "intraline" as it is specifically related to the spacing between explosive handling locations. For instance, while the distance between storage facilities and populated areas are also of significance in munitions operations, they are categorized differently and have their own specific terminologies and regulations.