1. 隔膜：1.2 隔膜(diaphragm):? 隔膜(diaphragm)在电化学研究的大部分场合是电解槽必要的结构单元,隔膜将电解槽分隔为阳极区和阴极区,以保证阴极、阳极上发生氧化-还原反应的反应物和产物不互相接触和干扰. 特别是在化学电源的研究中,
2. 膜片：当前 价: - 最小起订:- 供货总量:-发货 期: - 所在 地: 上海 上海市 有效期至: 2009年09月23日 伟德真空专业提供各类各品牌的螺杆型(SCREW),旋齿(爪形,ROTARY CLAW),罗茨(ROOTS),涡旋(SCROLL),膜片(DIAPHRAGM),活塞(PISTON),
3. 隔板：在竹类中称为竿 以示与禾草者相区别;节间中空 常为筒形 或稍扁 髓部贴生于空腔之内壁 但亦有充满空腔而使节间为实心者;节一处之内有有横隔板(diaphragm)存在 故是闭塞的
4. 光圈：君不见,几乎所有有关照相机的入门书都至少有一幅眼睛与照相机的对照图,上面注明眼睑(Eyelid)相当於快门(Shutter),虹彩(Iris)相当於光圈(Diaphragm),眼睛晶体相当於镜头透镜,以及网膜(Retina)相当於照像底片等等(见图一).
1. 膈;膈膜
Your diaphragm is a muscle between your lungs and your stomach. It is used when you breathe.
2. (女性避孕用)子宫帽
A diaphragm is a circular rubber contraceptive device that a woman places inside her vagina.
公共查询·英语单词
noun
1. a mechanical device in a camera that controls size of aperture of the lens
e.g. the new cameras adjust the diaphragm automatically
Synonym: stop
2. electro-acoustic transducer that vibrates to receive or produce sound waves
3. 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
Synonym: pessarycontraceptive diaphragm
4. (anatomy) a muscular partition separating the abdominal and thoracic cavities
functions in respiration
Synonym: midriff