| 释义 |
overˈblowing, vbl. n.
[f. overblow v.1 + -ing1.]
1. Metallurgy. Subjection to an excessive length of blast.
1879Jrnl. Iron & Steel Inst. 121 The removal of phosphorus was assisted by slight over-blowing. 1890W. M. Williams Chem. Iron & Steel Making xvi. 301 An experimentally overblown sample..in spite of overblowing, produced a high quality of mild steel after the addition of spiegeleisen. 1932E. Gregory Metall. ii. 35 Over-blowing results in the production of over-oxidised and ‘wild’ metal. 1949Jrnl. Metals Dec. 27/2 One of the most important features of end-point control is the elimination of overblowing.
2. Mus. In the playing of a pipe or wind instrument: production of a harmonic or overtone instead of the fundamental note through extra force of air.
1879Organ Voicing & Tuning 17 Overblowing, or speaking the octave. Causes:—(a), languid too low; (b), excessive wind-hole. 1898Stainer & Barrett Dict. Mus. Terms (ed. 2) s.v. Harmonic stops, They will take a very strong pressure of wind without overblowing. 1938Oxf. Compan. Mus. 59/1 Other wood-wind instruments..obtain their second octave by overblowing. 1954Grove's Dict. Mus. (ed. 5) VI. 468/2 Overblowing greatly increases the natural compass of wind instruments. 1977Times 13 Apr. 11/1 Michel Portal, a splendid clarinettist, was playing ill-toned microtones and strident chords (faked by overblowing in a manner now common in new music). 1977Early Music July 351/1 A minute hole in the crook, especially on lower shawms, aids overblowing into the second octave. |