真實衰減 的英文怎麼說

中文拼音 [zhēnshíshuāijiǎn]
真實衰減 英文
true attenuation
  • 真 : Ⅰ形容詞（真實） true; genuine; real Ⅱ副詞1 （的確; 實在） really; truly; indeed 2 （清楚確實） cl...
  • 實 : Ⅰ形容詞1 （內部完全填滿 沒有空隙） solid 2 （真實; 實在） true; real; honest Ⅱ名詞1 （實際; 事實...
  • 衰 : 衰動詞（衰弱） decline; wane
  • 真實 : true; real; authentic
  • 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
  1. 3. the new microwave power supply ( mps ) can work in vacuum and its power measurement is convenient. the output power could be adjusted with the change of control voltage, and the reflecting power could be gotten by measuring the output voltage of attenuator and detector

    （ 3 ）可在真空下穩定工作的新型微波源功率的測量較為方便，通過改變控制電壓的大小可以調節輸出功率，通過測量衰減檢波器的輸出電壓信號可實現反射功率的測量。
  2. Testing of carbon materials ; determination of the coefficient of permeability by means of the vacuum - decay method with air as experimental gas ; solid matters

    炭素材料試驗.用空氣作實驗氣體的真空衰減法測定透氣
  3. This paper introduces some practicable way of eta, presents the principle of each method and compares their virtues and shortcomings. among them, the vca ( voltage controlled amplify ) becomes prominent for its good characteristics, such as wide output dynamic range, low nonlinear distortion, flat amplitude - frequency characteristics, high amplitude resolution

    對衰減器的總體方案和實現方法作了全面的分析、並著重分析了電路設計和研製中的各個關鍵問題，如動態范圍，幅頻特性，相位特性，非線性失真等。
  4. It can separate the real signal from noise signal effectively and attains the purpose of de - noise by using time - frequency localizing anslysis, local feature abstract, time - change filter wave, restraining or attenuating some frequency range and other characters of wavelet. furthermore, the ratio of signal to noise has been improved greatly and it is not affected by signal state

    而利用小波分析的時頻局部化分析、局部特徵提取和時變濾波、抑制或衰減某些頻率區間等特點，能更有效地把真實信號和噪聲信號區分開來，達到消除噪聲的目的，並且這種方法恢復的信號，信噪比有明顯的提高，還不受信號的狀態的影響。
  5. A natural sounding headphone should have a gentle hump in the bass ( about 3 or 4 db ) between 40hz and 500hz. ( this compensates for the fact that headphones don ' t give you the physical punch that the sound from a speaker has ; so a slight compensation of increased bass is needed for natural sound. ) headphones also need to be rolled off in the highs to compensate for the drivers being so close to the ear ; a gently sloping flat line from 1khz to about 8 - 10db down at 20khz is about right

    這大致是說，耳機頻響曲線在低頻40 - 500赫茲間有個小的隆起是正常的，因為耳機不能象喇叭那樣給人真實的低頻沖擊力，所以在這個低頻段加強一些，聲音反而自然逼真些.另外，為避免太刺激耳朵，耳機在1000赫茲起到耳朵聽力的極限20000赫茲間應該有衰減，到2萬赫茲處比平均輸出低8 - 10分貝是正常現象
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