noun🔗Share拱腹, 底面. The visible underside of an arch, balcony, beam, cornice, staircase, vault or any other architectural element."The birds built a nest under the soffit of the porch roof, sheltered from the rain. "鸟儿在门廊屋檐的拱腹下面筑了个巢，可以遮风挡雨。architecturebuildingpartChat with AIVocabulary GamePractice Reading
noun🔗Share管内顶，拱顶。 (pipe technology) The top point of the inside open section of a pipe or box conduit."The elevation of the pipe soffit is 10.4 meters above mean sea level."管道拱顶的标高是平均海平面以上10.4米。technologyarchitecturebuildingutilityChat with AIVocabulary GamePractice Reading
