Final answer:
A wire or mesh fence can be rolled out on the ground to create a temporary barrier in engineering projects.
Step-by-step explanation:
This question seems to be asking about a temporary barrier that is often rolled out on the ground. One example of such a barrier is a wire or mesh used in engineering projects. This wire or mesh can be rolled out on the ground to create a temporary fence or barricade, providing a physical barrier for a specific duration. It is commonly used in construction sites or event venues to restrict access or create boundaries.