| 释义 |
surface wave
[surface n.]
a. A wave of displacements propagated along the surface of a solid or a liquid.
1887Ld. Rayleigh in Proc. Lond. Math. Soc. XVII. 11 It is not improbable that the surface waves here investigated play an important part in earthquakes, and in the collision of elastic solids. 1900Nature 4 Oct. 562/1 The earthquake wave takes about 110 minutes to travel from its origin to the opposite end of the earth's diameter, but whether it is propagated through the centre of the earth or as a surface wave cannot at present be decided. 1953H. Kolsky Stress Waves in Solids ii. 16 Where there is a bounding surface..elastic surface waves may also occur. These waves..are similar to gravitational surface waves in liquids. 1973IEEE Trans. Microwave Theory & Techniques XXI. 176/1 Their size, design flexibility, and reproducibility make acoustic surface-wave devices excellent candidates for many important applications in radar and communication systems.
b. Radio. [tr. G. oberflächenwelle (A. Sommerfeld 1911, in Jahrb. d. drahtl. Telegr. IV. 166).] A radio wave propagated along the surface of the earth.
1913[see space wave s.v. space n.1 20]. 1943[see ground wave s.v. ground n. 18]. 1971[see sky wave s.v. sky n.1 9]. |