2.a kind of extreme retrogression to 19th-century attitudes.
朝着19世纪观点的某种急剧。
3.Persist in progress and oppose retrogression !
坚持进步, 反对!
4.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行性膝关节炎的治疗效果。
5.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.