| English | Chinese |
| environmentally sound technology | 生态技术 |
| environmentally sound technology | 合乎环境要求的技术 |
| linear source of sound Point noise sources placed one after the other one as, for instance, in a row of cars moving on a road | 线性声源 (像在道路上行驶的一列汽车一样顺序放置的点噪声源。) |
| sound emission | 放声 |
| sound emission Diffusion into the environment of a sound emitted from a given source | 声发射 (从指定环境发出的声音:扩散到的另外的环境。) |
| sound immission The introduction in the environment of noise deriving from various sources that can be grouped in: transportation activities, industrial activities and daily normal activities | 声音排入 (在噪音环境中各种噪音源的引入，可以分为：交通运输活动，工业活动和日常生活的正常活动。) |
| sound insulation material Material used to reduce the transmission of sound to or from a body, device, room, etc. | 隔音材料 (用于降低声音从音源到特定装置、设备和房间等的传输的材料。) |
| sound level The sound pressure level (in decibels) at a point in a sound field, averaged over the audible frequency range and over a time interval | 音量 (声压大小(分贝)在声场上的一个点，平均发声频率范围和时间间隔超过1。) |
| sound measurement Because of the large variations in sound magnitudes, and because the human hearing sensation seems to vary in a logarithmic way, logarithms are used in measurement of sound. The sound pressure level is given in decibels (dB) | 声音测量 (由于声音的变化幅度大，且人耳的感觉似乎是以对数的方式改变,对数被用来测量声音，声压大小以分贝的方式给出。) |
| sound propagation The travelling of acoustic waves in the atmosphere with a speed independent of their amplitude. The speed only depends on the acoustic medium and is proportional to the square route of the absolute temperature for any given medium | 声传播 (大气中以一定速度传输的声波与它的振幅无关。速度只取决于声中介，与任何介质的绝对温度的平方路线成正比。) |
| sound transmission Passage of a sound wave through a medium or series of media | 声音传播 (通过媒介或系列媒体传递的声波。) |
