[经] economic and technological cooperation with foreign countries

duì wài jīng jì jì shù hé zuò ㄉㄨㄟˋ ㄨㄞˋ ㄐㄧㄥ ㄐㄧˋ ㄐㄧˋ ㄕㄨˋ ㄏㄜˊ ㄗㄨㄛˋ