Единствената най-добра стратегия за използване за агрегиране

a : a rock made up of mineral crystals of a number of forms or of mineral rock fragments : an aggregate rock b : any of several tricky inert resources (like sand, gravel, or slag) employed for mixing that has a cementing substance to type concrete, mortar, or plaster c : a clustered mass of personal soil particles different in shape, ranging in mea