雪城大学建筑系对Massing的解释很贴切。 Massing（Building Massing）：The volume and shape of a building. Massing (and scale/size) of new construction and
rehabilitations should be similar to the massing. A commercial building is typically
a rectangular mass with a flat roof. Homes can be simple rectangular mass, or more
complex with numerous additions, and typically have gable or hipped roofs.
简单的说就是建筑的内体积和容形态。