常見例句雙語例句Constructing cartographic model is helpful to make complex system simplified and comparison is a main stage of model construction.建立地圖模型，有助于使復(fù)雜系統(tǒng)簡(jiǎn)單化，而比較是建立模型的主要環(huán)節(jié)。 返回 cartographic model