| 单词 | crookes lens |
| 释义 | Crookes lensnouna type of lens, used in sunglasses, that is made from glass containing cerium. It reduces the transmission of ultraviolet radiation Words nearby Crookes lensCrookes, Crookes dark space, Crooke's granule, Crooke's hyaline degeneration, crookesite, Crookes lens, Crookes radiometer, Crookes space, Crookes tube, crookneck, crook one's elbow Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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