例句與造句

1. Synthesizers with low phase noise , highly pure spectrum , high resolution and fast frequency jump speed have dominating development direction of the frequency synthesis technology
   低相位噪聲、高純頻譜、高分辨率和高速頻率捷變成為頻率合成技術(shù)發(fā)展的主要趨勢。
2. Some hybrid frequency synthesis methods for dds + pll which used usually are presented in the following section , and its analysis for phase noise , spur , and frequency jump speed was also introduced
   接著對dds + pll頻率合成器常用組合方案進(jìn)行了介紹,并對dds + pll系統(tǒng)的相位噪聲、雜散、頻率轉(zhuǎn)換速度進(jìn)行了分析。
3. Even under the condition that the filling pressure was up to 1 . 5mpa , the onset temperature was only 237 ? . with the filling nitrogen of 0 . 9 mpa , the maximal pressure ratio reaches 1 . 21 and the operation frequency is 25 hz . the ratio of the harmonic wave of the engine was very little and the frequency jumping was not found in present experiments
   在充氣壓力為0 . 9mpa的條件下，該熱聲發(fā)動機最大壓比可達(dá)1 . 21 ，遠(yuǎn)高于駐波型熱聲發(fā)動機，實驗結(jié)果和理論分析均表明系統(tǒng)的工作頻率為25hz左右，實驗裝置的諧波比例非常小，且也沒發(fā)現(xiàn)頻率跳變等現(xiàn)象。
4. It's difficult to find frequency jumping in a sentence. 用frequency jumping造句挺難的