national museum of natural history national multiple sclerosis society national mourning 國喪national monuments national monument 國立紀(jì)念物，國家歷史文物national monopoly [經(jīng)] 國家壟斷；國家專利national money income [經(jīng)濟(jì)學(xué)]國民貨幣收入national minority aids council national minority 少數(shù)民族national military strategy [軍事學(xué)]國家軍事戰(zhàn)略national military joint intelligence center [軍事學(xué)]國家軍事聯(lián)合情報(bào)中心national meteorological satellite system [交通運(yùn)輸工程]國家氣象衛(wèi)星系統(tǒng)national measurement standard [數(shù)學(xué)]國家量測標(biāo)準(zhǔn)national map grid [地球科學(xué)]國立地図格子national mall and memorial parks national literacy trust national life finance corporation national library 國家圖書館national liberation war 民族解放戰(zhàn)爭national liberation 民族解放