| 单词 | centre-zero |
| 释义 | > as lemmascentre-zero centre-zero adj. designating a scale (as on a measuring instrument) on which zero is the centre value, thus enabling both positive and negative values to be indicated; designating a line representing zero on such a scale; (of a measuring instrument) that uses such a scale. ΘΚΠ the world > relative properties > measurement > measuring instrument > [adjective] > attributes of measuring instruments graduated1806 self-recording1838 recording1857 centre-zero1879 scaled1900 zeroable1956 1879 L. Schwendler Instr. Testing Telegr. Lines (ed. 2) I. 218 The scale is 2 feet long (1 foot lying on each side of the centre zero line). 1898 Electr. World 4 June 688/2 On the dashboard is a combined voltmeter and ammeter, the latter being a centre zero instrument. 1934 A. E. Knowlton Electric Power Metering xvii. 330 The motion would be the same with respect to the zero point of a center-zero scale if the deflecting force were applied and then removed. 2012 J. Bird & C. Ross Mech. Engin. Princ. (ed. 2) xxiii. 266/2 Flow can be metered in either direction by using a centre-zero measuring instrument. < as lemmas |
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