这种粘弹性凝胶在被挤压后会逐渐恢复原状。

The ___viscoelastic gel gradually returns to its original shape after being squeezed.

这种新型材料具有粘弹性，能够在拉伸后恢复原状。

This new material shows ___viscoelastic properties, returning to its original shape after stretching.