英语词汇“radiation efficiency”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

> as lemmas

radiation efficiency

radiation efficiency n. Telecommunications the ratio of the power radiated by an object (e.g. as radio waves, light, or sound) to the input power.

ΚΠ

1913 J. Erskine-Murray Handbk. Wireless Telegr. (ed. 4) xix. 367 (heading) A direct experimental method for the determination of the radiation efficiency, earth resistance and other constants of a transmitter.

1977 S. W. Amos Radio, TV & Audio Techn. Ref. Bk. xxi. 5 Antenna radiation efficiency = power radiated by antenna/input power to antenna.

1996 Jrnl. Sound & Vibration 190 317 The grid has a poor acoustic radiation efficiency because of the large percentage of open area.

extracted from radiationn.

as lemmas

单词	radiation efficiency
释义	> as lemmas radiation efficiency radiation efficiency n. Telecommunications the ratio of the power radiated by an object (e.g. as radio waves, light, or sound) to the input power. ΚΠ 1913 J. Erskine-Murray Handbk. Wireless Telegr. (ed. 4) xix. 367 (heading) A direct experimental method for the determination of the radiation efficiency, earth resistance and other constants of a transmitter. 1977 S. W. Amos Radio, TV & Audio Techn. Ref. Bk. xxi. 5 Antenna radiation efficiency = power radiated by antenna/input power to antenna. 1996 Jrnl. Sound & Vibration 190 317 The grid has a poor acoustic radiation efficiency because of the large percentage of open area. extracted from radiationn. < as lemmas
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