noun🔗Share下垂，松弛 The state of sinking or bending; a droop."Example Sentence: "The sags in the old couch made it uncomfortable to sit on for long." "那张旧沙发因为塌陷的地方坐久了很不舒服。appearanceconditionChat with AIVocabulary GamePractice Reading
noun🔗Share下垂度，松弛度。 The difference in elevation of a wire, cable, chain or rope suspended between two consecutive points."The engineer carefully measured the sags in the power lines between each pole to ensure they wouldn't touch the ground. "工程师仔细测量了每根电线杆之间电力线的下垂度，以确保它们不会碰到地面。technicalphysicsChat with AIVocabulary GamePractice Reading
noun🔗Share矢高，拱高 The difference in height or depth between the vertex and the rim of a curved surface, specifically used for optical elements such as a mirror or lens."The lens maker carefully measured the sags of the new lenses to ensure they focused light correctly. "这位镜片制造商仔细测量了新镜片的矢高，以确保它们能够正确聚焦光线。physicstechnologymathtechnicalChat with AIVocabulary GamePractice Reading
