单词	iris diaphragm
释义	iris diaphragm noun : an adjustable diaphragm of thin opaque plates that can be turned by a ring so as to change the diameter of a central opening usually to regulate the aperture of a lens (as in a camera or microscope)
随便看	supercommentary supercompression supercomputer supercomputing superconduct superconduction superconductive superconductivity superconductor superconscious superconsciousness supercontinent supercontract super contract bridge supercontraction supercool supercrescence supercrescent supercritical supercrust supercurrent superdainty superdense superdominant superdooper

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