例句與造句

1. A specialized noise test bench of automobile cooling fan was designed to carry out the bench test and the outer vehicle acceleration noise test also was conducted
   設(shè)計(jì)制造了發(fā)動機(jī)冷卻風(fēng)扇噪聲性能測試專用試驗(yàn)臺，用于冷卻風(fēng)扇的臺架試驗(yàn)。同時，使用新的風(fēng)扇原型進(jìn)行了整車車外加速噪聲性能測試。
2. In order to carry out the acoustic and aerodynamics performances tests , seven resonators are designed and made , and a specialized engine intake silencer and exhaust silencers test bench was designed . the tests and analysis are performed as well . on the basis of the intake noise spectrum of sc7080a , a three - parallel - connected resonant silencer is designed , and that has efficiently controlled the acceleration noise of sc7080a
   在此基礎(chǔ)上設(shè)計(jì)并加工了兩類七個共振型進(jìn)氣消聲器，研制了發(fā)動機(jī)進(jìn)排氣消聲器性能測試實(shí)驗(yàn)臺，開發(fā)了發(fā)動機(jī)進(jìn)排氣消聲器聲學(xué)性能測試軟件，并在該實(shí)驗(yàn)臺上測試了所設(shè)計(jì)的進(jìn)氣消聲器靜態(tài)工況下的傳聲損失，從實(shí)驗(yàn)的角度研究了共振腔的尺寸、形狀對其共振頻率的影響及其趨勢。
3. The bench test indicated that noise of the designed cooling fan was apparently decreased . at the important revolution , 3 ~ 4 . 5db ( a ) noise decrease can be expected in the bench test and 1 . 5 ~ 2db ( a ) decrease in the acceleration noise test . with the modification of shroud , a better result can be expected
   風(fēng)扇臺架試驗(yàn)測試結(jié)果表明，針對研究車型（ sc6331b ）改進(jìn)設(shè)計(jì)的冷卻風(fēng)扇，噪聲得到較大幅度的下降，在發(fā)動機(jī)主要工作轉(zhuǎn)速下，風(fēng)扇噪聲下降3 ~ 4 . 5db ( a ) ，由此帶來了1 . 5 ~ 2db ( a )左右的整車車外加速噪聲的下降。
4. It's difficult to find acceleration noise in a sentence. 用acceleration noise造句挺難的