例句與造句

1. Finally , the experiments on the rotor bvi noise are conducted both in an aeroacoustic laboratory and at outdoors , and the noise characteristics at different locations are measured on different blade - tip mach numbers , collective pitch angles and rotor configurations . based on the experimental results , some new conclusions are presented
   本文第七章分別在“消聲室”和外場進(jìn)行了模型旋翼的槳-渦干擾噪聲實(shí)驗(yàn)，對(duì)不同馬赫數(shù)、不同槳距角以及不同旋翼布置情況下的不同測點(diǎn)進(jìn)行了噪聲測量，得出了一些新的結(jié)論。
2. It's difficult to find tip mach number in a sentence. 用tip mach number造句挺難的