短語詞組短語barrier r to entry 進入壁壘fdi barrier to entry 直接投資進入壁壘barrier to market entry 市場進入壁壘Formation of barrier to entry 進入壁壘的形成Patents as barrier to entry 專利形成之蓡進障礙Creates a barrier to entry 進入壁壘 返回 barrier to entry