At present, the widely used mechanical metamaterial has excellent characteristics such as negative thermal expansion, and high strength and high stiffness at low weight. However, once this mechanical metamaterial is constructed, its properties cannot be changed or adjusted. Recently, researchers have developed a new type of material which overcome this problem. It is certain that in the near future, robots, smart wearable equipment and other fields will definitely fundamentally change.
If true, the statement "From the synthesis of a new material to the specific practical application of the material, it is necessary to overcome a variety of unpredictable difficulties" will most support the above conclusion.