diaphragm

a mechanical device in a camera that controls the size of the aperture of the lens

1. 1.

   In mammals, a sheet of muscle separating the thorax from the abdomen, contracted and relaxed in respiration to draw air into and expel air from the lungs.

   哺乳动物体内分隔胸腔和腹腔的一片肌肉,呼吸时收缩和放松,以将空气吸入和排出肺部。

2. 2.

   a mechanical device in a camera that controls size of aperture of the lens

   相机中控制镜头光圈大小的机械装置

3. 3.

   Any of various membranes or sheets of muscle or ligament which separate one cavity from another.

   任何将一腔与另一腔分隔的膜或肌肉/韧带片。

4. 4.

   (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration

   (解剖学)分隔腹腔和胸腔的肌肉隔膜；在呼吸中起作用

5. 5.

   A contraceptive device consisting of a flexible cup, used to cover the cervix during intercourse.

   一种避孕装置,由一个柔性杯状物组成,性交时用于覆盖子宫颈。

6. 6.

   a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix

   一种避孕装置,由橡胶或塑料制成的柔性圆顶杯,内填杀精剂,覆盖在子宫颈上

7. 7.

   A flexible membrane separating two chambers and fixed around its periphery that distends into one or other chamber as the difference in the pressure in the chambers varies.

   一种柔性膜,分隔两室并固定在其周边,随着两室间的压力差变化而向某一室膨胀。

8. 8.

   In a speaker, the thin, semi-rigid membrane which vibrates to produce sound.

   扬声器中,振动以产生声音的薄而半刚性的膜。

9. 9.

   A thin opaque structure with a central aperture, used to limit the passage of light into a camera or similar device.

   一种带有中央孔的薄不透明结构,用于限制进入相机或类似设备的光线。

10. 10.

    A permeable or semipermeable membrane.

    一种可渗透或半透膜。

11. 11.

    A floor slab, metal wall panel, roof panel or the like, having a sufficiently large in-plane shear stiffness and sufficient strength to transmit horizontal forces to resisting systems.

    楼板、金属墙板、屋面板等,具有足够大的平面内剪切刚度和强度,以将水平力传递至抗侧力系统。

哺乳动物体内分隔胸腔和腹腔的一片肌肉,呼吸时收缩和放松,以将空气吸入和排出肺部。；相机中控制镜头光圈大小的机械装置；任何将一腔与另一腔分隔的膜或肌肉/韧带片。；(解剖学)分隔腹腔和胸腔的肌肉隔膜；在呼吸中起作用；一种避孕装置,由一个柔性杯状物组成,性交时用于覆盖子宫颈。

In use

Connections

Learner notes