diaphragm

/ˈdaɪəfræm/ (bre, ipa) · /ˈdaɪəfræm/ (ame, ipa) · /ˈdī-ə-ˌfram/ (ame, mw)

diaphragm — 名詞

  • diaphragmsingular
  • diaphragmsplural

1. the large muscle under the lungs that moves to help air go in and out of the bod

1.名詞C1
釋義

橫膈膜

胸腹之間幫助呼吸的大肌肉

the large muscle under the lungs that moves to help air go in and out of the body

例句

The doctor asked Mauricio to relax his diaphragm before the scan.

醫師請 Mauricio 在掃描前先放鬆橫膈膜。

body part in a medical exam

Deep singing uses the diaphragm more than the throat muscles.

深唱時，比起喉部肌肉，更要用到橫膈膜。

pattern: use the diaphragm in singing

同義詞

文法句型

the diaphragm

breathe from the diaphragm

diaphragm pain

用法筆記

Usually singular when it means the body muscle. It often appears in singing, breathing, and medical contexts, especially in the pattern breathe from the diaphragm.

常見錯誤

❌Sing from your stomach.
✅Sing from your diaphragm.
💡In voice training, the diaphragm is the specific muscle that supports breathing.

2. a soft cup put inside the vagina before sex to stop sperm from reaching the womb

2.名詞C2
釋義

避孕隔膜

放入陰道阻擋精子的避孕器具

a soft cup put inside the vagina before sex to stop sperm from reaching the womb

例句

At the clinic, Alessia learned how to insert a diaphragm safely.

在診所裡，Alessia 學著如何安全地放入避孕隔膜。

pattern: insert a diaphragm safely

Gabriel bought spermicide because his partner uses a diaphragm for birth control.

Gabriel 買了殺精劑，因為伴侶使用避孕隔膜避孕。

with spermicide for birth control

同義詞

文法句型

insert a diaphragm

diaphragm size

use a diaphragm with spermicide

用法筆記

Often appears with words like fit, size, insert, and spermicide. In everyday speech, people usually need context to know that this sense means the contraceptive device, not the body muscle.

常見錯誤

❌She took a diaphragm before bed.
✅She inserted a diaphragm before sex.
💡A diaphragm is a barrier device, not a pill you swallow.

3. a thin layer stretched across a hole or tube to keep two spaces apart

3.名詞C2
釋義

隔膜

機械或管件內分隔空間的薄膜

a thin layer stretched across a hole or tube to keep two spaces apart

例句

A torn diaphragm inside the pump let water leak all night.

幫浦裡破掉的隔膜讓水整晚都在漏。

The mechanic replaced the rubber diaphragm at the top of the valve.

技師更換了閥門頂端的橡膠隔膜。

machine part: rubber diaphragm in a valve

同義詞
  • membrane

    a broader word for a thin layer, not always a machine part

  • partition

    a more general divider, often more rigid than a diaphragm

文法句型

a rubber diaphragm

a diaphragm inside a valve

replace the diaphragm

用法筆記

Used for a separating layer in equipment, tubes, and containers. Unlike sense 5, this sense does not specifically mean the sound-making part in audio devices.

4. the part in a camera lens that opens or closes to control how much light enters

4.名詞C2
釋義

光圈

鏡頭內控制進光量的裝置

the part in a camera lens that opens or closes to control how much light enters

例句

Tuan closed the diaphragm to keep the bright sky from washing out the photo.

Tuan 把光圈縮小，免得明亮的天空讓照片發白。

photography: control light entering the lens

On the old microscope, Eri adjusted the diaphragm before focusing.

在那台老顯微鏡上，Eri 先調整光圈才對焦。

optics: adjust the diaphragm before focus

同義詞
  • aperture stop

    the more technical optics term for the light-limiting mechanism

  • iris

    often used for the adjustable opening in a lens

文法句型

adjust the diaphragm

open the diaphragm

close the diaphragm

用法筆記

Mostly used in photography and optics. In everyday camera talk, many speakers simply say aperture for the opening itself.

常見錯誤

❌I changed the diaphragm to zoom in.
✅I changed the diaphragm to let in more light.
💡This part controls the opening size, not the lens magnification.

5. the moving disc inside a speaker or microphone that vibrates when sound hits it

5.名詞C2
釋義

振膜

音響器材中負責振動發聲的薄片

the moving disc inside a speaker or microphone that vibrates when sound hits it or when sound is played

例句

Ingrid heard a buzz because the speaker diaphragm was loose.

Ingrid 聽到嗡嗡聲，因為喇叭振膜鬆了。

audio: speaker diaphragm

The repair shop replaced the torn diaphragm inside the microphone.

維修店更換了麥克風裡破掉的振膜。

audio: microphone diaphragm

同義詞
  • vibrating membrane

    a descriptive technical phrase for the moving sound part

  • cone

    a common speaker term for the moving part, especially in larger speakers

文法句型

speaker diaphragm

microphone diaphragm

replace the diaphragm

用法筆記

This sense is specific to audio equipment and often appears after the device name, as in speaker diaphragm or microphone diaphragm. Unlike sense 3, the part's job is to vibrate with sound.