| 单词 | diaphragm |
| 释义 | diaphragm 1 ENTRIES FOUND: plural diaphragms plural diaphragms Learner's definition of DIAPHRAGM [count] 1 medical : a large flat muscle that separates the lungs from the stomach area and that is used in breathing膈，膈膜，横膈膜（分隔胸腔和腹腔的肌肉） — see picture at human 2 technical : a device that controls the amount of light passing through the lens of a camera（照相机的）光圈 3 : a device shaped like a cup that is placed in the vagina to prevent pregnancy（避孕用的）子宫帽 — called also (British) cap 4 technical : a thin disk that is used in microphones, telephones, speakers, etc., to help reproduce sound or make sounds louder（麦克风、电话、扬声器等的）膜片，膜件，振动膜 |
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