短語詞組短語preliminary developing stage 初步發(fā)展時(shí)期preliminary -stage duration 預(yù)點(diǎn)火階段持續(xù)時(shí)間preliminary design stage 初步設(shè)計(jì)階段;初設(shè)階段preliminary exploration stage 預(yù)探階段preliminary heading stage 抽穗始期preliminary feasibility stage 初可階段work in preliminary project stage 項(xiàng)目前期工作at the preliminary design stage 初步設(shè)計(jì)階段preliminary stage theory 初級(jí)階段論 返回 preliminary stage