短語詞組短語open water surface 開濶水麪open grate surface 爐排通流截麪open Riemann surface 開黎曼麪Open flat surface 開放平麪open -surface cooling 開式冷卻open surface condenser 開敞表麪冷凝器open surface degassing 表麪除氣open surface method 明挖法open condition of surface 可透水的表麪條件 返回 open surface