For example, I can add my brother as my companion now, and after our flight, change my companion to my sister and add her as a companion on a ticket. After the flight with my sister, same /same â I can then change my companion and book the next companion ticket.
Architectural drawings are made according to a set of conventions, which include particular views (floor plan, section etc.), sheet sizes, units of measurement and scales, annotation and cross referencing.
Building Stone. Building stone comes in different types. Different types of stone lend themselves to particular building techniques. Igneous rock, such as granite, is very hard and nonporous. Sedimentary rock, such as limestone, is soft and porous. Metamorphic rock, such as marble, is very hard and nonporous.