音标：['daiәfræm]
n. 横隔膜, (摄影机的)光圈
【化】 隔膜; 膜片; 光阑
【医】 膈; 隔膜; 光阑
在线英汉词典www.zbyw.cn
diaphragm的短语、例句：
diaphragm
n
1 wall of muscle, between the chest and the abdomen, that helps to control breathing 膈; 膈膜; 横膈膜. =>illus at respire 见respire之插图.
2 arrangement of thin plates in a camera that control how much light is let in through the lens 光圈; 光孔; 光阑.
3 vibrating disc or cone producing sound-waves, eg in telephone receivers, loudspeakers, etc 振动膜（如电话听筒及扬声器等中的）.
4 (also Dutch cap, cap) thin plastic or rubber membrane that is fitted over the neck of the womb before intercourse to prevent conception 子宫帽（避孕用具）.
diaphragm