| 释义 |
ionogram|aɪˈɒnəʊgræm|
[f. iono- + -gram.]
1. A record of radio pulses received by an ionosonde following their reflection by the ionosphere.
1955Sci. Amer. Sept. 128/2 To make an ionosonde record (ionogram) the transmitter and receiver are tuned rapidly through a range of frequencies. The echoes received are displayed on a cathode ray oscilloscope and photographed. 1963Times 15 Feb. 7/7 Some 70,000 ‘ionograms’—graphs of frequency against depth of reflection below the satellite—have so far been obtained and are of good quality. 1967Encycl. Dict. Physics Suppl. II. 240 The resulting ‘ionogram’, showing time delay as a function of frequency, can be interpreted as electron density as a function of ‘virtual height’ in the atmosphere.
2. Chem. The result of an ionographic separation, usually a series of spots or bands on the support medium.
1955Federation Proc. XIV. 736/2 To determine the location of the various zones on an ionogram occupied by the individual components of a mixture, a number of procedures have been developed. 1963Proc. 17th World Veterinary Congr. II. 1107 The ionogram of serum represents the electrolytic compounds of extracellular fluid in dogs. 1970Biol. Abstr. LI. 354/1 Pre- and post-operational ionograms should be examined, in patients with a funnel-shaped deformation of the thorax. |