Diaphragm

(noun.) a mechanical device in a camera that controls size of aperture of the lens; 'the new cameras adjust the diaphragm automatically'.

(noun.) electro-acoustic transducer that vibrates to receive or produce sound waves.

(noun.) 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.

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

编辑:凯利

• The needle, in passing rapidly in contact with the recorded waves, was vibrated up and down, causing corresponding vibrations of the diaphragm. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• They were then carried through the receiving armature and reproduced on the receiving diaphragm, with all the same characteristics of pitch, loudness and quality. 威廉·亨利·杜利特. 世纪发明.
• The diaphragm A, of thin ferrotype plate, is clamped at its edges between the cap, or mouth-piece, and the handle. Edward W. Byrn. 十九世纪发明进展.
• Resting on the cylinder was a palladium-faced pen or spring, which was attached to a mica diaphragm in a resonator. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The carbon disk is represented by the black portion, E, near the diaphragm, A, placed between two platinum plates D and G, which are connected in the battery circuit, as shown by the lines. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• As the singer interprets the song the vibrations set up by the singer’s voice are communicated to the diaphragm by the passage of the sound through the horn. 佚名. 神奇的知识之书.
• He heard the firing and as he walked he felt it in the pit of his stomach as though it echoed on his own diaphragm. 欧内斯特·海明威. 丧钟为谁而鸣.
• These indentations correspond to the vibrations imparted to the needle through the diaphragm, and are the recorded sounds made by the singer or band. 佚名. 神奇的知识之书.
• The mouthpiece A had adjacent to the cylinder a flexible diaphragm carrying a little point or stylus which bore against the tin foil on the cylinder. Edward W. Byrn. 十九世纪发明进展.
• The front end of this cylindrical shield is provided with a diaphragm or bulkhead in which are apertures which may be opened or closed at will. 佚名. 神奇的知识之书.
• Suspended above, but in contact with the surface of the blank, is a recording needle or stylus, attached to a diaphragm which, in turn, is connected to an amplifying horn. 佚名. 神奇的知识之书.
• Reis evidently did not know how to make the vibrations of his diaphragm translate themselves into exactly commensurate and correlated electric impulses of equal rapidity, range, and quality. Edward W. Byrn. 十九世纪发明进展.
• As the waxed disc and pan are revolved, the stylus and diaphragm are gradually moved by gears toward the center of the disc. Edward W. Byrn. 十九世纪发明进展.
• Its function is like that of a hinge, which allows the diaphragm to freely swing inward. Edward W. Byrn. 十九世纪发明进展.
• This mouthpiece had a diaphragm and stylus similar to the other one, only more delicately constructed. Edward W. Byrn. 十九世纪发明进展.
• The diaphragms in all the chambers are so connected that they move in concert. 佚名. 神奇的知识之书.
• By means of slide valves, like those of a steam engine, worked by the movement of the diaphragms, the gas to be measured passes alternately in and out of each space. 佚名. 神奇的知识之书.
• The diaphragms used in the recorders and reproducers are made of French rolled plate glass, thinner than a sheet of ordinary writing paper. Edward W. Byrn. 十九世纪发明进展.
• There were two diaphragms, one on each side of the cylinder, one being for recording and the other for reproducing speech or other sounds. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

整理:洛蒂