national level 國(guó)家級(jí)；國(guó)家層次national languages committee national language 國(guó)語(yǔ)；民族語(yǔ)言national land policy [地球科學(xué)]國(guó)土政策national lampoon's senior trip national lampoon presents dorm daze national lampoon national labor college national knowledge infrastructure [計(jì)算機(jī)科學(xué)技術(shù)]國(guó)家知識(shí)基礎(chǔ)設(shè)施建設(shè)national jewish health national iv standard [能源科學(xué)技術(shù)]國(guó)iv標(biāo)準(zhǔn)national its architecture national intelligence agency national institute of agricultural botany national innovation of system [經(jīng)濟(jì)學(xué)]國(guó)家創(chuàng)新體系national information processing system [計(jì)算機(jī)科學(xué)技術(shù)]國(guó)家信息處理系統(tǒng)國(guó)家資訊處理系統(tǒng)national information assurance partnership [計(jì)算機(jī)科學(xué)技術(shù)]國(guó)家信息保證合作組織國(guó)家資訊保證合作組織national industrial security program national indoor stadium [土木建筑工程]國(guó)家體育館national income accounts 國(guó)民收入核算 國(guó)民收入基本賬戶