例句與造句

1. First , the theoretical analysis about the micro perforated absorber is present in this paper . then , the source noise of the apu of ma60 is obtained by the outside test in airport . based on the test result , a micro perforated absorber is designed and produced
   論文根據(jù)微穿孔板吸聲體理論和微穿孔板消聲器的基本理論，對(duì)微穿孔板消聲器結(jié)構(gòu)參數(shù)與吸聲特性之間的相互影響進(jìn)行了深入的分析和探討；建立了一套微穿孔板吸聲結(jié)構(gòu)的設(shè)計(jì)方法。
2. It's difficult to find source noise in a sentence. 用source noise造句挺難的