If you're asking about numbers, try any even number greater than 2.
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1,4,6,8,9,10,12,14,15,16,18,20
Combination of two or more materials
•An example of this is concrete. The stone is the particulate and the cement acts as the matrix. The stone mixes with the cement and forms a composite.
polymerization shrinkage
120,121,122,123,124