| Chinese | English |
| 声音 | sound Auditory sensation produced by the oscillations, stress, pressure, particle displacement, and particle velocity in a medium with internal forces; pressure variation that the human ear can detect (通过媒介在内力的作用下，由震动、压力、压强、颗粒移置和质点速度所产生的听觉的震荡，人耳可检测到的压力的变化。) |
| 声音传播 | sound transmission Passage of a sound wave through a medium or series of media (通过媒介或系列媒体传递的声波。) |
| 声音排入 | 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 (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。) |
| 声音测量 | 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) (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。) |
