入口断面 meaning in Chinese

inlet section

In the pneumatic experiment of resemble model , it was found that the flow speed at 365mm to the entrance section 0f resemble model ( entrance section of diffuser ) was 1 . 40 times faster than the natural wind speed , 4 . 5 % higher than resemble model . flux energy increased to 2 . 74 , 13 . 7 % higher than model . the fact was worth to lucubrate
在相似模型的气动特性中,发现了在距相似模型入口断面365mm处(扩散管入口断面处) ,气流流速是前方相同面积来流风速的1 . 40倍,比相似模型提高了4 . 5 % ,气流动能增至前方相同面积来流风能的2 . 74倍,比相似模型提高了13 . 7 % 。