So the research of the stabilityof parameter excited system and its rangeofstability is very important and necessary.
所以，研究参数激励系统的稳定性及其稳定区域(范围)是很重要的。
2
The paper also gives the rangeofstability of key block of voussoir beam and measures to be taken in various conditions.
文中还给出了“砌体梁”关键块体结构的稳定范围及在各种条件下应采取的相应措施。
3
In given forcing, the system appears bifurcation and arrives at chaotic state more ea - sier within greater rangeofstability parameter, when dissipative coefficient is smaller.