| Chinese | English |
| 交通噪声 | traffic noise Noise emitted by vehicles (heavy vehicles, cars and motorcycles, tyre/road interaction) (车辆(重型车辆、汽车、摩托车、轮胎/路面接触)所排放的噪声。) |
| 交通噪声控制 | traffic noise control Traffic noise can be controlled by reduction at source, by fitting motor vehicles with silencers, by installing barriers which interrupt the direct path of sound or by insulating dwellings exposed to high noise levels, such as those related to motorways or airports (交通噪声可通过减少噪声源来控制，通过给机动车安装消音器、通过建立障碍物来阻断声音的直接路径，或使处于高噪声水平的区域与外绝缘，例如与高速公路和机场相关的区域。) |
| 噪声 | noise Sound which is unwanted, either because of its effects on humans, its effect on fatigue or malfunction of physical equipment, or its interference with the perception or detection of other sounds (有害的声音，要么是因为对人类的影响，造成身体疲劳或设备故障，要么干扰知觉或对其它声音的探测。) |
| 噪声分析 | noise analysis Determination of the frequency components that make up a particular noise being studied (研究组成特定噪音的频率成分的测定。) |
| 噪声排放 | noise emission The release of noise into the environment from various sources that can be grouped in: transportation activities, industrial activities and daily normal activities (从不同来源释放到环境中的噪音，这些来源可分为：交通运输活动、工业活动和日常的正常活动。) |
| 噪声排放税 | noise emission levy A mandatory sum of money levied by government upon producers of disturbing, harmful or unwanted sounds, frequently in the transportation or construction industries, to encourage reduction of sound levels (政府对产生令人不安的、有害的或不需要的声音的生产者强制征收的款项，常发生在运输或建造业，以鼓励声音水平下降。) |
| 噪声控制 | noise abatement Measures to reduce noise at the source, to encourage quieter technologies or equipment or to prevent or reduce the propagation of sound. Measures may include the isolation and damping of vibration sources; the replacement of components with quieter parts and material; the enclosure of particularly noisy components; the provision of noise barriers, etc. (为了支持消音技术、设备或防止、减少声音的传播，从源头上减少噪声的措施。措施可包括隔离和减幅振动源；使用消音部件和材料更换组件；围住特定的噪音部分；提供隔音屏障等。) |
| 噪声效应 | noise effect |
| 噪声暴露计划 | noise exposure plan A formulated or systematic method to prevent the effects of being subjected to loud or harsh sounds (一个明确的、系统性的方法来防止受到大声或刺耳声音的影响。) |
| 噪声污染 | noise pollution Harmful or unwanted sounds in the environment, which in specific locals, can be measured and averaged over a period of time (局部环境中可以测量和平均存在一段时间的有害或不需要的声音。) |
| 噪声污染物 | noise pollutant Noise in the environment which can be harmful to human beings, animals and plants (在环境中可对人体、动物和植物造成伤害的噪声。) |
| 噪声法规 | noise legislation Legislation introduced by many governments to prevent or restrict the emission of noise from industrial, commercial and domestic premises; from motor vehicles and aircraft; and from consumer appliances and equipment (许多国家的政府采用的立法，以防止或限制来自工业、商业、住宅楼宇和汽车、飞机及消费电器、设备的噪音排放。) |
| 噪声测量 | noise measurement The process of quantitatively determining one or more properties of acoustic noise (定量测定噪声的一个或多个属性的过程。) |
| 噪声照射 | noise immission Immission in the environment of acoustic vibrations that negatively affect human beings, animals, plants or other objects (声音震动排入环境，对人类、动物、植物或其他物体造成负面影响。) |
| 噪声干扰，杂音电平 | noise level |
| 噪声监测 | noise monitoring The systematic deployment of monitoring equipment for the purpose of detecting or measuring quantitatively or qualitatively the presence, effect, or level of noise (为了定性定量检测和测量噪音的存在、影响或水平而系统部署的监测设备。) |
| 噪声等效温差 | noise equivalent delta temperature |
| 噪声类型 | noise type |
| 噪声级 | noise level Physical quantity of unwanted sound measured, usually expressed in decibels (有害声音物理量的测量，通常以分贝表示。) |
| 噪声防护 | noise protection Adoption of measures for controlling noise pollution, such as restriction of the emission of noise from industrial, commercial and domestic premises, from motor vehicles and aircrafts, the provision of noise barriers and buffer zones, the fitting of sound attenuation equipment, etc. (采用控制噪声污染的措施，如限制来自工业、商业、住宅楼宇和汽车、飞机排放的噪声，提供隔音屏障及缓冲区，采用适当的消声装置等。) |
| 噪声频谱 | noise spectrum The range of frequencies occurring in the noise emitted by a source (出现在同一来源发出的噪声的频率范围。) |
| 声传播 | 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 (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。) |
| 声发射 | sound emission Diffusion into the environment of a sound emitted from a given source (从指定环境发出的声音:扩散到的另外的环境。) |
| 声学 | acoustics The science of the production, transmission and effects of sound (研究声音的产生、传播以及影响的科学。) |
| 声学特性 | acoustic property The characteristics found within a structure that determine the quality of sound in its relevance to hearing (决定某种材质传播声音质量的结构特征。) |
| 声学质量 | acoustical quality The characteristics of a confined space that determines its ability to enable music and speech to be heard clearly within it (一个有限空间的特性，决定了音乐和其他声音能够在其中被清楚听到的能力。) |
| 声强 | acoustic level Physical quantity of sound measured, usually expressed in decibels (衡量声音的物理量，通常用分贝表示。) |
| 声爆 | sonic boom (震) |
| 声舒适 | acoustic comfort |
| 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。) |
| 放声 | sound emission |
| 无噪声技术 | noise-free technology Sound is radiated both as air-borne and as structure-borne; most sources produce both, thus various noise attenuation principles must be employed. Measures include: the replacement of components with quieter parts and material; the enclosure of particularly noisy components; the selection of quieter types of fan; the replacement of noisy compressed-air nozzles with quieter types; the choice of quieter transmission and cooling systems (声音可同时作为空气传播和结构传播；大部分的传播来源同时产生，因而不同的噪音衰减原则须得到使用。措施包括：用消音零件和材料更换部件；隔绝特定的噪声部件；选择消音风扇；用消音类型更换噪音压缩空气喷嘴；选择消音传输和散热系统。) |
| 气动噪声 | aerodynamic noise Acoustic noise caused by turbulent airflow over the surface of a body (强烈气流经过物体表面产生的噪声。) |
| 法定声明 | statutory declaration A declaration made in a prescribed form before a justice of the peace, notary public, or other person authorized to administer an oath (按照规定的形式，出于正义，在有公证人或其他人授权下发表的声明。) |
| 滚动声 | rolling noise Deeply resounding, reverberating noise caused by the friction between car tyres and road surfaces (由汽车和路面摩擦产生的很强的回声、轰轰的噪音。) |
| 滤声器 | acoustic filter A device employed to reject sound in a particular range of frequencies while passing sound in another range of frequencies (一种用来过滤某个频率范围的声音同时允许另一个频率范围的声音通过的设备。) |
| 环境声明 | environmental statement eco-audit, Assessment made by a company or organization of the financial benefits and disadvantages to be derived from adopting a more environmentally sound policy (公司或组织对采取一个更可靠环境政策在财政上的利弊做出的评估。) |
| 环境噪声 | neighbourhood noise General noise from a local source (such as the noise of a factory) which is disturbing to people living in the area (来自本地的噪音(例如工厂的噪音)给生活在本地区的人们带来干扰。) |
| 环境影响声明 | environment impact statement |
| 稳态噪声 | steady noise Unceasing prolonged noise, without interruption (长期不断的噪音，没有中断。) |
| 空气传播噪声 | airborne noise Noise caused by the movement of large volumes of air and the use of high-pressure air (大量气体移动或使用高压气体所产生的噪音) |
| 线性声源 | 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 (像在道路上行驶的一列汽车一样顺序放置的点噪声源。) |
| 结构噪声 | structure-borne noise Sound that travels over at least part of its path by means of the vibration of a solid structure (通过一个稳固的结构的振动，声音传导至少其路径的一部分。) |
| 航空器噪声 | aircraft noise Effective sound output of the various sources of noise associated with aircraft operation, such as propeller and engine exhaust, jet noise, and sonic boom (航空器运转所产生的各种噪音输出，噪音来源包括螺旋桨、引擎排气、喷射噪音和超声波音爆等) |
| 超声波 | ultrasound Sound waves having a frequency above about 20,000 hertz (大约2万赫兹以上的高频声波。) |
