| 单词 | photometric bench | 
| 释义 | > as lemmasphotometric bench   photometric bench  n. = photometer bench n. at photometer n. Compounds. ΚΠ 1894    G. W. Patterson  & M. R. Patterson tr.  A. Palaz Treat. Industr. Photometry iv. 178  				The photometric bench is an optical bench strongly and carefully constructed. 1966    Large  & Wilman in  H. Hewitt  & A. S. Vause Lamps & Lighting vii. 89  				Where measurements involving direction and distance are concerned a photometric bench is required. 2001    Jrnl. Res. National Inst. Standards & Technol. 		(Nexis)	 1 Jan. 151  				A schematic drawing of the major features of the photometric bench that is used to maintain the NIST candela scale. < as lemmas  | 
	
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