“stop down”的概念、定义、翻译、参考文献-科学参考

单词	stop down
释义	stop down [`stäp`dau̇n] ^OPTICS To reduce the size of a lens aperture.
随便看	PVI PVM PVP pW P wave PWI PWR pwt pyarthrosis pycnidiospore pycnidium pycniospore pycnite pycnium pycnocline Pycnodontiformes Pycnogonida Pycnogonidae pycnometer pycnometry pyelitis pyelolithotomy pyelonephritis pyemia Pygasteridae

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