| 释义 |
▪ I. reˈstrike, n.|riː-|
[f. the vb.]
1. A reimpression of a coin, print, or medal.
1902Connoisseur Feb. 131/2 Till lately..the Paris Mint has afforded unusual facilities for restrikes of rarities from the existing dies. 1912Chambers's Jrnl. May 327/2 Restrikes of these medals are not uncommon, as it is only within recent years that the Calcutta mint has been prohibited from issuing them. 1965Zigrosser & Gaehde Guide to Collecting Orig. Prints iv. 62 Prints, either late restrikes from the plate or genuine old uncolored impressions, have often been colored by a later hand. 1970New Yorker 20 June 63/2 The reason for this low price..is that the print is a restrike. This means that it was made after the artist's death from the original plate. 1980Daily Tel. 16 Feb. 27/6 In the case of badges, ‘restrikes’ are a common hazard.
2. Electr. Engin. The re-ignition of an arc.
1962Newnes Conc. Encycl. Electr. Engin. 132/2 Suppression of the arc before natural current zero causes severe overvoltages and high frequency multiple restrikes.
▪ II. reˈstrike, v.|riː-|
[re- 5 a.]
a. trans. To strike again; esp. to stamp (a coin) afresh.
1887Head Hist. Num. 125 These coins belong to the age of Timoleon, and are restruck over coins of Syracuse. 1901Black Carpent. & Build. 19 These can be afterwards restruck with the striking knife.
b. intr. Electr. Engin. Of an arc: to strike again (strike v. 76 a). Also trans. (causatively).
1937[implied in restriking vbl. n. below]. 1942A. Arnold Switchgear Pract. ix. 109 The arc will again re⁓strike. 1955E. Molloy Electr. Engineer's Ref. Bk. (ed. 8) vii. 24 It is the rate of rise of the restriking voltage that determines whether or not the arc will restrike. 1962Newnes Conc. Encycl. Electr. Engin. 132/1 To achieve successful interruption [of alternating currents] it is necessary to prevent the arc restriking by separating the contacts to a distance which will withstand the restriking voltage. 1977R. L. Little Metalworking Technol. v. xxiv. 279/1 Restriking an arc... The welder strikes the arc approximately ½ to 1 in. in front of the crater on the side opposite the weld bead.
Hence reˈstriking vbl. n., esp. in Electr. Engin.; restriking voltage, in a circuit-breaker, the value of the high-frequency voltage surge across the contacts following their separation and the extinction of the subsequent arc between them; reˈstruck ppl. a.
1885Trans. Lanc. & Chesh. Antiq. Soc. III. 64 These re-struck coins of Catherine II are much more frequently met with than the coins of Peter [III]. 1937Todd & Thompson Outdoor High Voltage Switchgear viii. 172 An important factor controlling restriking voltage is the type of machine..supplying the circuit. 1958J. Shepherd et al. Higher Electr. Engin. xvi. 405 In oil circuit breakers, where dielectric strengths are normally higher than in air circuit breakers, re-striking may not take place. |