(1)增加了本國(guó)產(chǎn)品在國(guó)際市場(chǎng)上的競(jìng)爭(zhēng)力,擴(kuò)大了對(duì)外貿(mào)易 (2)保證本國(guó)所需資源的穩(wěn)定供應(yīng) (3)有助于本國(guó)經(jīng)濟(jì)結(jié)構(gòu)調(diào)整