At first, concept of similar-type product was defined, a new surface representation based on NURBS theories was proposed to represent surfaces of similar-type products uniformly.是什么意思_At first, concept of similar-type product was defined, a new surface representation based on NURBS theories was proposed to represent surfaces of similar-type products uniformly.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句