oscillate

英 ['?s?le?t] 美['ɑs?let]

IELTSGRE低頻詞擴(kuò)展詞匯

第三人稱(chēng)單數(shù):?oscillates;過(guò)去式:?oscillated;過(guò)去分詞:?oscillated;現(xiàn)在分詞:?oscillating;

1. oscill- + -ate.

oscillate 使搖擺，波動(dòng)

來(lái)自拉丁語(yǔ)os,嘴，詞源同oral,-cill,小詞后綴。原指在葡萄園入口處掛上的酒神Bacchus的面具，相當(dāng)于庇佑符，以保佑葡萄豐收。因這個(gè)小面具常在風(fēng)中搖擺，最終詞義俗化，引申詞義波動(dòng)，使搖擺。

oscillate: oscillate: [18] Latin ōs originally meant ‘mouth’ (it was the source of English oral), but it was also used for ‘face’. Its diminutive form ōscillum ‘little face’ was applied to a mask depicting the god Bacchus that was hung up as a charm in vineyards, to be swung to and fro by the breeze. In due course its meaning broadened out to ‘swing’ generally, and a verb ōscillāre ‘swing’ was derived from it – whence English oscillate.
=> oral
oscillate (v.): 1726, back-formation from oscillation, or else from Latin oscillatus, past participle of oscillare (see oscillation). From 1917 in electronics. Related: Oscillated; oscillating.

1. On an oscilloscope, you can see an electrical current oscillate up and down.: 在示波器上面你可以看到一股電流上下振動(dòng).

2. In the case of homogeneous broadening only one mode can normally oscillate.: 對(duì)于均勻加寬的情況,只有一個(gè)模能正常地振蕩.

3. He seemed to oscillate between very drunk and icy sober.: 他似乎是在酩酊大醉和完全清醒之間擺來(lái)擺去.

4. It is true that system could oscillate back - wards and forwards in this dead zone.: 不過(guò),系統(tǒng)在這個(gè)死區(qū)內(nèi)可能會(huì)發(fā)生來(lái)回的振蕩.

5. The standard EBU model can not drive combustion to oscillate.: EBU模型不包含燃燒振蕩機(jī)理.