例句與造句

1. the mm-wave section contains quadruple multiplication stage and iq modulation part . measurement has testified that triple-tuning of dds frequency 、 reference divider ratio 、 and loop divider ratio avoided frequencies with high spur level while ensuring the realization of total frequencies . the spur level is below-55dbc and frequency resolution reached 100khz; dds output frequency was up-converted to drive the m / n pll, reducing phase noise, which is better than-87dbc / hz @ 1khz,-92dbc / hz @ 10khz, decreasing frequency-hopping time which is less than 14us
   系統(tǒng)分為微波與毫米波兩大部分,微波部分綜合利用了dds、lo混頻鎖相環(huán)和rf混頻鎖相環(huán)實現(xiàn)兩路頻差15mhz的xband全相參信號;毫米波部分,將xband本振信號四倍頻得到毫米波本振;xband載波信號經(jīng)開關控制形成脈沖信號,倍頻、iq調制后得到毫米波發(fā)射信號。
2. It's difficult to find reference divider in a sentence. 用reference divider造句挺難的