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单词 milliammeter
释义

milliammetern.

Brit. /ˌmɪlɪˈamᵻtə/, U.S. /ˌmɪliˈæ(m)ˌmidər/
Origin: Formed within English, by compounding. Etymons: milli- comb. form, ammeter n.
Etymology: < milli- comb. form + ammeter n., after milliampere n.
An instrument for measuring electric currents of the order of milliamperes. Also (earlier) called milliampere meter n. at milliampere n. Compounds.
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the world > matter > physics > electromagnetic radiation > electricity > electric current > [noun] > measurement of force > instrument for
rheometer1839
thermo-electrometer1842
ammeter1882
Kelvin balance1892
milliammeter1902
bell-rheometer-
1894 J. Mount-Bleyer in H. R. Bigelow Internat. Syst. Electro-Therapeutics A. 231 Another very excellent vertical mil-am-meter is the one manufactured by the Chloride-of-Silver Dry-Cell Battery Company, of Baltimore.]
1902 G. B. Massey in H. R. Bigelow & G. B. Massey Internat. Syst. Electro-Therapeutics (ed. 2) B. 151 The Weston Company has placed a medical milliammeter on the market which leaves little to be desired.
1935 C. J. Smith Intermediate Physics (ed. 2) xlv. 754 Voltmeters.—These instruments..are milliammeters in which a resistance has been placed in series with the moving coil.
1946 Nature 28 Dec. 943/1 The received signal was recorded continuously on a recording milliammeter.
1987 J. Millman & A. Grabel Microelectronics (ed. 2) xvii. 780 The voltage to be measured is applied through a multiplier resistor R to two corners of the bridge, a dc milliammeter being used as an indicating instrument across the other two corners.
This entry has been updated (OED Third Edition, March 2002; most recently modified version published online March 2022).
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n.1902
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