When the redundantconstraint is taken away, and the special load is applied to the structure, the structure can be still in instantaneous equilibrium.
这种约束的多余性表现在取走它之后，在特殊荷载作用下该结构仍可处于瞬平衡状态。
2
The characteristic of the instantaneous stable structure is that the structures freedom degree is equal to zero, but still the structure remains a redundantconstraint.
瞬变结构的特点是尽管自由度等于零，但仍有多余约束。
3
The characteristic of the instantaneous stable structure is that the structure's freedom degree is equal to zero, but still the structure remains a redundantconstraint.