noise emission

the noise emission can be also controlled in this way in high frequency range (fig. 11 and fig. 12).

在高频范围的噪声辐射也可通过此方法控制（图11和图12）。

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acoustics - laboratory tests on noise emission from appliances and equipment used in water supply installations - method of measurement

声学.用于供水设施的装置和设备发出的噪音的实验室试验.测量方法

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measurement of noise emission from compressors and vacuum pumps (engineering method)

压缩机和真空汞的噪声发射的测量（工程法）

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"noise emission" means emission of noise from the source to the living environment of the neighbourhood.

“噪声排放”是指噪声源向周围生活环境辐射噪声。

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measurement of noise emitted by machines; airborne noise emission, enveloping surface method; internal combustion engines

机器噪声测量。空气载声测量。包面法。内燃机

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using the microphone array system based on beam forming technology, the noise emission property of a motorcycle was investigated in detail.

利用基于波束成形的远场声阵列噪声源分析技术研究了摩托车辐射噪声的声源特性。

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measurement of noise emitted by machines; airborne noise emission; enveloping surface method; cooling towers

机器噪声测量.空气载声测量.包面法.冷却塔

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measurement of noise emitted by machines; airborne noise emission; enveloping surface method; outboard motors

机器噪声测量.空气载声测量.包面法.艇外推进机

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test code for machine tools - part 5 : determination of the noise emission.

机床试验规范.第5部分：噪声发射测量

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acoustics - procedure for the comparison of noise-emission data for machinery and equipment

声学。机械设备释放噪声数据的比较方法

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a noise emission label will be issued if epd is satisfied that the relevant noise emission standard has been complied with.

若环保署信纳有关设备的噪音合乎标准，便会签发噪音标签。

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measurement of noise emitted by machines; airborne noise emission; enveloping surface method; surface treatment plants

机器噪声测量.空气载声测量.包面法.表面处理设备

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test code for machine tools - determination of the noise emission

机床试验规范.噪声排放的测定

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approach for noise emission standards of fixed sources and monitoring

固定污染源噪声标准与监测问题的探讨

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statistical methods for determining and verifying stated noise emission values of machinery and equipment

测定和校验机械与设备固定噪声发射的统计方法

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acoustics. declaration and verification of noise emission values of machinery and equipment.

声学.机器和设备释放燥音值的审报和检测

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measurement of noise emitted by machines; airborne noise emission; enveloping surface method; chimneys

机器噪声测量.空气载声测量.包面法.烟囱

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noise emission in the environment by equipment for outdoors

指令简称：户外用设备在环境中的噪声辐射

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moreover, the noise emission of these drives considerably falls below the values prescribed by the worldwide noise protection regulations.

因此，这一传动装置大大低于世界上有关的所有噪音防护规定。

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measurement of noise emitted by machines; explanatory notes on noise emission parameters

机器噪声测量.对噪声发射参数的说明

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A new blanking method is advanced. This method can eliminate the phenomenon of blank scrap upgoing and stop up, and can reduce to the maximal value blanking technical noise emission.

提出的这种两步法冲裁的新方法，既能消除自动化冲压加工中的废料上行和废料堵塞现象，又有降低冲裁工艺噪声发射峰值。

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acoustics - measurement of noise and vibration of small air-moving devices, part 1: airborne noise emission

声学。小型气动装置的噪声和振动测量。第1部分：空气噪声排放

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measurement of noise emitted by machines; airborne noise emission; enveloping surface method; hydraulic assemblies

机器噪声测量.空气载声测量.包面法.液压机组

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requiring noise emission from motor vehicles to comply with stringent international standards on first registration in hong kong.

汽车发出的噪音须符合国际标准，才可在香港作首次登记。

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measurement of noise emitted by machines - airborne noise emission enveloping surface method - part 23: gear transmisson

机器噪声测量.空气噪声发射包络面法.第23部分：齿轮变速器

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acoustics. declared noise emission values of computer and business equipment.

声学.计算机和商业设备发出的噪声申报值

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guidelines for the preparation of standard procedures to determine the noise emission from sources

测定来自声源的噪声发射的标准程序编制指南

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measurement of noise emitted by machines; airborne noise emission; enveloping surface method; flares

机器噪声测量.空气载声测量.包面法.火炬

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noise emission of outdoor equipment directive

户外噪音辐射

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as a result, less turbulence is created and less velocity loss and lower noise emission.

因此，降低混乱和减少更少的速度损失和更低的噪音发射。

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