A point or line represented by 0 on an instrument or device, used as the basis for taking measurements.
| 单词 | θ117474 | 
| 释义 | the world > relative properties > measurement > measuring instrument > 			[noun]		 > graduated instruments > graduated scale > point or line from which measuring begins (2)		 zero1761 A point or line represented by 0 on an instrument or device, used as the basis for taking measurements. Subcategories:— 			displacement of zero-point			(1)		 | 
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