| 词条 | diaphragm |
| 释义 | diaphragm n. [解] 横隔膜, 控光装置, 照相机镜头上的光圈, (电话等)振动膜 英英解释: 名词diaphragm: 1. a mechanical device in a camera that controls size of aperture of the lens 同义词：stop 2. (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration 同义词：midriff 3. 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 同义词：pessary, contraceptive diaphragm 4. electro-acoustic transducer that vibrates to receive or produce sound waves |
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