Furthermore, the author points out that the capacity of Henan's sustainable development has been gradually strengthened in 1990s, but fluctuated to a certain degree during 1991~1993.
Furthermore, the author points out that the capacity of Henan's sustainable development has been gradually strengthened in 1990s, but fluctuated to a certain degree during 1991~1993.
20世纪90年代河南省可持续发展能力总趋势是增强的，但1991年~1993年间呈下降态势。