Mechanics. The measure of effectiveness of an engine, expressed by the number of units of practically effective work done per unit amount or weight…
| 单词 | θ214138 |
| 释义 | society > occupation and work > equipment > machine > machines which impart power > engine > [noun] > instrument for testing > for measuring effectiveness, rotation, etc. (7) duty1827 Mechanics. The measure of effectiveness of an engine, expressed by the number of units of practically effective work done per unit amount or weight… revolution counter1855 (originally) a device for counting and displaying the number of revolutions made by an engine or other mechanism; (in later use) one for… motometer1876 A machine or instrument which registers the number of revolutions made by an engine, shaft, etc. rev counter1888 an instrument that measures and displays the speed of an engine or other mechanism as revolutions per minute; = tachometer, n. a. torsionmeter1905 an instrument which measures the torsion in a rotating shaft, thus providing information about the power output of the engine driving it. torque meter1911 = torsionmeter n. at torsion, n. compounds 2. torsiograph1930 An instrument for measuring torsional oscillations of the crankshaft of an engine. |
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