例句與造句

1. ( 4 ) the influence of pulsation frequency on the drying process two special cases , in which the selected pulsation frequencies were 0 h / , and 83 h / respectively , were simulated and their simulation results indicated that the pulsating frequency of gas stream could improve the intensities of the heat and mass transfer during a pulse combustion spray drying process
   ( 4 )揭示了氣流脈動(dòng)對干燥過程的影響本文模擬脈動(dòng)頻率為83hz的脈動(dòng)氣流和非脈動(dòng)氣流的兩種干燥過程，比較兩種干燥過程的顆粒蒸發(fā)速率和濕含量變化。模擬結(jié)果表明氣流脈動(dòng)對噴霧干燥過程有一定增強(qiáng)作用。
2. It's difficult to find pulsation frequency in a sentence. 用pulsation frequency造句挺難的