| 单词 |
pinging |
| 释义 |
ˈpinging, vbl. n.
[f. ping v.2 + -ing1.]
a. The process of making an abrupt ringing sound or ‘ping’; the sound itself; spec. = pinking vbl. n.3
More usual than pinking in the U.S. and Australia.
1898Daily News 10 Dec. 6/5 Pinging of harps, tootling of flutes. 1955Pop. Mechanics Nov. 203/2 Retard the spark a little at a time..until no pinging is heard. 1967Boston Sunday Herald 28 May i. 2/6 ‘Pinging’..results from carbon deposits or fuel not high enough in octane rating. 1969Telegraph (Brisbane) 1 Feb. 13/4 Tetra-ethyl lead is used to raise octane ratings, reduce engine knock or pinging and minimise engine misfires.
b. The production or emission of pings by sonar or similar equipment (see ping n. 1 b).
1956Deep-Sea Res. IV. 39 The pinging circuit of the echo sounder. 1959H. Barnes Oceanogr. & Marine Biol. 203 New cameras have been described and in one contact with the bottom is indicated by a change of the ‘pinging’ rate of a small sound source attached to the unit. 1973Times 27 Dec. 3/2 Teams of 71 Squadron split into two daily shifts, poring over the sands between tides to the ‘pinging’ of mine detectors. 1974‘M. Hebden’ Pride of Dolphins iii. iii. 232 The relentless pinging of the asdic beam. |
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