retrogression of succession
【生态】逆行演替
,退步
退的;
;
升，提升，提拔;,成层,阶层的形成;retrogression of succession
【生态】逆行演替
a kind of extreme retrogression to 19th-century attitudes.
朝着19世纪观点的某种急剧
退。
Persist in progress and oppose retrogression !
坚持进步, 反对退!
Objective:to statistics the effect of close needling and acupuncture with warmed needle on retrogression gonarthritis.
目的:统计短刺加温针灸对退行性膝关节炎的治疗效果。
The formation and the coarse of δ′ phase in 1420 Al-Li alloy treated by retrogression and reaging were investigated by means of small angle X-ray scattering (SAXS) technique.
采用小角X
线
术研究了回归再回火处理1420铝锂合金δ′相的形成和粗
。
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