diaphragm的中文意思、音标与词形变化

n. 横隔膜, (摄影机的)光圈 [化] 隔膜; 膜片; 光阑

n. a mechanical device in a camera that controls size of aperture of the lens n. (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration n. a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix n. electro-acoustic transducer that vibrates to receive or produce sound waves