lower envelope 中文意思是什麼

lower envelope 解釋
下包絡
  • lower : adj 〈low 的比較級〉1 較低的。2 下級的，低級的。 lower animals 下等動物。3 南部的。 in lower Manh...
  • envelope : n. 1. 信封；紙袋；包封，封皮。2. 殼層，外殼。3. 【數學】包（絡）線；包跡。4. 【航空】氣囊；【天文學】包層；【生物學】包膜，包被。
  1. Because the photospheric temperature of carbon stars are less than 3000k and the temperature of rich - dust envelope formed by the mass loss is lower, and therefore most of the energy from carbon stars are radiated between 1 to 60um range, in which the vibrational and ro - vibrational bands of many molecules also lies, the study of infrared spectra in this wavelength range is very important to reveal chemical compositions, dust formation process, the atmospheric structure and evolutionary status of stars

    碳星光球的有效溫度不超過3000k ，同時較大的質量損失率形成了富碳的塵埃殼層，以致於它的輻射能量主要集中在1 ? 60 m的紅外波段上，並且許多分子的轉動振動能譜也集中在紅外，因此在紅外波段的研究對揭示碳星化學成份及其分佈、塵埃形成過程、恆星大氣結構和演化狀態都有十分重要的意義。
  2. We have designed a new type of ijf code to reduce the envelope fluctuation, and have also got the reduced envelope fluctuation ijf - oqpsk. it has faster roll off of the power spectrum and lower energy of band out

    本文設計了一種能夠抑制包絡起伏型的ijf信號碼型，並相應地得到了抑制包絡起伏型的ijf ? oqpsk ，它具有更快的功率譜滾降特性和更好的相位路徑。
  3. Theoretical analysis and simulation results demonstrate that asymmetries in lower and upper sidebands and imd magnitude variation depending on envelope frequency and junction temperature can appear, these results are in accordance with measurement results, and show that electrical and thermal memory effects exist

    理論分析和模擬結果表明功率放大器上下邊帶不平衡和互調失真幅度依賴于包絡頻率和結溫，結果和測量的結果是一致的，說明存在電和熱記憶效應。
  4. If the signal is too strong a distortion, and not putting the drop - down sound, but the sound in order to lower the volume on the device parameters, or decreased synthesizer tone of the volume envelope

    如果信號太強發生了失真，也不要下拉音量推桿，而應該在音序裝置上降低音量參數，或是降低合成器音色的音量包絡。
  5. Please fill out the booking form and return with remittance and a stamped, self - addressed envelope no smaller than 10 cm x 17 cm to the collection boxes at the enquiry counter of the hong kong cultural centre or the hong kong city hall, lower block during opening hours 09 : 30 - 20 : 30 during the postal booking period. all postal booking orders will be processed centrally at the urbtix central booking office

    請將填妥之訂票表格，連同支票、本票或信用咭訂票憑單及寫上訂票人姓名、地址及貼上足夠郵費的回郵信封（不少於10厘米17厘米） ，于接受郵購訂票期間，每天上午9時30分至晚上8時30分交往香港文化中心或香港大會堂低座的詢問處。
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