快速演替是指几年或十数年的演替。
通过推 力的系统化快速演替，它抵消了重力作用，产生了悬浮；
Through systematic rapid succession of thrust, it counteract the pull effect of gravity, result in levitation;
试验结果表明：沙打旺从兴盛到衰败，出现一快速演替系列，其重要值有明显的变化。
The survey showed that the life of Astragalus adsurgens from thrivingness to decline is a rapid succession series.
群落演替处于快速衰落阶段，退化迹象十分明显。
The community succession was on the comedown phase rapidly, and the evidence of degeneration was naked.
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