diaphragm
英 ['da??fr?m]
美['da??'fr?m]
- n. 隔膜；快門，[攝] 光圈；橫隔膜；隔板
低頻詞IELTS暢通詞匯
詞態(tài)變化
復(fù)數(shù):?diaphragms;
中文詞源
diaphragm 膈膜，光圈
來自希臘語diaphragma,阻擋，障礙，dia-, 穿過，-phrag, 阻擋，詞源同cataphract. 原指分開喉嚨和腹腔之間的肌肉，后也用于指照機(jī)的光圈等。
英文詞源
- diaphragm
- diaphragm: [17] The etymological notion underlying diaphragm is of a sort of ‘fence’ or ‘partition’ within the body. It comes via late Latin diaphragma from Greek diáphragma. This in turn was a derivative of diaphrássein ‘divide off, barricade’, a compound verb formed from the intensive prefix dia- and phrássein ‘fence in, enclose’. Originally in Greek diáphragma was applied to other bodily partitions than that between the thorax and the abdomen – to the septum which divides the two nostrils, for instance.
- diaphragm (n.)
- late 14c., from Late Latin diaphragma, from Greek diaphragma "partition, barrier, muscle which divides the thorax from the abdomen," from diaphrassein "to barricade," from dia- "across" (see dia-) + phrassein "to fence or hedge in." The native word is midriff. Meaning "contraceptive cap" is from 1933.
雙語例句
- 1. The diaphragm vibrates , thus setting the air around it in motion.
- 膜片振動,這使得周圍的空氣也動蕩起來.
來自《現(xiàn)代漢英綜合大詞典》
- 2. The diaphragm draws air into the lungs.
- 橫膈膜向下運動讓空氣進(jìn)入肺部.
來自《簡明英漢詞典》
- 3. A portion of the cardia is demonstrated above the diaphragm.
- 膈上發(fā)現(xiàn)部分賁門.
來自辭典例句
- 4. Gastric distention may also reduce lung volume by elevating the diaphragm.
- 胃脹使膈升高也會減少肺的容積.
來自辭典例句
- 5. It was a terylene diaphragm coated with a layer of aluminum.
- 它利用一個鍍有鋁層的滌綸膜片.
來自辭典例句