As a group, multiplayer fabrics have the advantage of a large voidvolume in the non-compressible bade structure.
作为一个组织，多层面料的优点是无效体积大在非可压缩八德结构中。
3
An asphalt mixture base with a high voidvolume was designed by volume design procedure, and optimum asphalt content of mixture was determined by Marshall test.