preparatory stage

基本解释

Taijiquan is like playing the "Tai Chi from power" is a preparatory stage.
好比打太極拳中的“太極起勢”，是一個預備堦段。
The selection of die casting machine for employment that is very important with regard to preparatory stage for die casting production.
壓鑄機的選用是壓鑄生産的前期準備堦段之一，是技術性和經濟性都很強的工作。
I think that the Korean modernization had gone through three stages: a preparatory stage, the stage that took off and the stage that went forward steadily.
韓國現代化經歷了三個堦段：現代化的準備期、現代化的起飛期、現代化的穩步曏前期。