diaphragm是什麼意思 diaphragm的用法 diaphragm怎麼讀
diaphragm
英 ['daɪəfræm]美 ['daɪə'fræm]
n. 隔膜；快門，[攝] 光圈；橫隔膜；隔板
使用頻率:★
星級詞彙:★
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，後也用於指照機的光圈等。
英語詞源
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.
權威例句
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盪起來.
2. The diaphragm draws air into the lungs.
橫膈膜向下運動讓空氣進入肺部.
3. A portion of the cardia is demonstrated above the diaphragm.
膈上發現部分賁門.
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.
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.
[ diaphragm 造句 ]
