例句與造句

1. Some critical coding and modulation techniques in uav communication have been discussed in this thesis , including differential phase keying ( dpsk ) , modulation multiple symbol detection ( msd ) , adaptive trellis coded modulation ( atcm ) , and space - time coding . this work was supported by the national defense 973 project . uav communication has many sophisticated technologies
   本論文在國防973項目“無人機信息傳輸理論與方法研究”的資助下，結(jié)合現(xiàn)代數(shù)字通信領(lǐng)域的新技術(shù)，根據(jù)無人機通信的特點和需求，對其中的幾項關(guān)鍵技術(shù)做了深入研究。
2. It's difficult to find differential phase keying (dpsk) in a sentence. 用differential phase keying (dpsk)造句挺難的