| 释义 |
bombardment|bɒmˈbɑːrdmənt|
[f. bombard v. + -ment.]
1. The process of bombarding; continuous attack upon a place with shot and shell.
1702Lond. Gaz. No. 3807/3 Which gives us great Apprehensions of a Bombardment. 1790Beatson Nav. & Mil. Mem. II. 402 To destroy these vessels..by means of a bombardment. 1813Wellington Let. in Gurw. Disp. XI. 33 The Bombardment answered no purpose whatever, excepting to destroy the town.
2. Physics. Subjection to a stream of particles (see bombard v. 4).
1898J. J. Thomson Discharge Electricity 191 The thermal effects are readily explained on the corpuscular theory by the heating of the substance by the bombardment with the particles. 1932Discovery May 139/1 From a bombardment of nitrogen, aluminium and other elements in this way, the alchemist's dream of changing one kind of element into another has been undoubtedly effected on an exceedingly minute scale. 1945Electronic Engin. XVII. 669 The use of α-particles as projectiles for nuclear bombardment was responsible for the next great step forward. 1969Times 5 Feb. 13/6 The Xi particles were formed in the bombardment of a tank of liquid hydrogen with very fast particles emitted by the accelerator. |