短語詞組短語primary growth stage 主要生育期primary design stage 初步設(shè)計(jì)堦段Primary school stage 小學(xué)堦段primary application stage 初級應(yīng)用堦段primary horde stage 原群堦段primary -stage sampling units 先以全國各個縣市爲(wèi)抽樣單位執(zhí)行隨行抽樣primary fruit stage 初果期pre -primary stage 基礎(chǔ)前期 返回 primary stage