" zoom " suggests a low engine noise ; " whiz " suggests a high whistling sound . “zm”指发动机的低噪音,“whiz”指似口哨或汽笛的高声。
Influence of inlet air noise on engine noise 进气噪声对内燃机整机噪声的影响
All the engine noise confused the dolphins 各种引擎的噪音使白暨豚的定位系统受到干扰。
Abnormal engine noise diagnosis equipment 异响诊断仪
The automotive engine noise measurement system based on virtual instrument 基于虚拟仪器技术的发动机噪声测试系统
My old car now is so much easier to start and has no more engine noise 现在我的旧车,不仅更容易启动,连噪音也完全消失了!
A copy of engine noise compliance letter from environmental protection department 由环境保护署发出的引擎噪音及格证明书副本乙份
" zoom " suggests a low engine noise ; " whiz " suggests a high whistling sound “ zm ”指发动机的低噪音, “ whiz ”指似口哨或汽笛的高声。
Crow d e . a comprehensive approach to engine noise reduction technology . isabe 2001 - 1011 陈光.航空发动机结构设计分析.北京:北京航空航天大学出版社, 2006
At low speed the cooling fan noise is much lower than the engine noise ; whilst at high speed it always tops the leading noise sources 在低速时风扇噪声要比发动机噪声低很多,而在高速时,往往会成为主要的噪声源。