低频噪音,Low-frequency noise
1)Low-frequency noise低频噪音
1.The environmental impacts of the EHV converting station in urban populous areas consists in electromagnetic radiation and low-frequency noise.城区超高压变电站的环境影响主要是电磁辐射和噪音干扰两方面,阐述了这两方面的危害,分析了其中存在的关键问题,并指出,合理选择电气设备和采取积极有效的布置型式是降低电磁辐射的关键,采用有源噪音控制系统有效降低低频噪音声级是减轻噪音污染的关键。
英文短句/例句
1.Expression of nitric oxide synthase in the gastric tissues of rats under exposure to infrasound低频噪音对大鼠胃组织一氧化氮合酶表达的影响
2.metal sealed UHF and low noise silicon transistor金属壳超高频低噪音硅晶体管
3.While high-frequency sounds tend to be more hazardous5 and more annoying to hearing than low-frequency sounds, most noise pollution damage is related to the intensity of the sound.虽然高频声音比低频声音更加危险且恼人，大多数的噪音污染损害却与声音强度有关。
4.While high frequency sounds tend to be more hazardous and more annoying to hearing than low frequency sounds, most noise pollution damage is related to the intensity of the sound.虽然高频 声音比低频声音更加危险且恼人，大多数的噪音污染损害却与声音强度有关。
5.QSTOL (quiet short takeoff and landing)低噪音短距起落低噪音短距起落飞机
6.tone-coded squelch system音频编码静噪通信系统
7.Stepless speed regulation control with frequency conversion,decreasing niose and it is more stable while high dewatering.变频无级调速控制，降低噪音，高速脱干更加平稳可靠。
8.transistor low-frequency noise-meter晶体管低频噪声测试仪
9.super silenced air compressor超低噪音空气压缩机
10.high speed low-noise synchronous motor高速低噪音异步电动机
11.Design of Low-Power CMOS RF Low Noise Amplifier低功耗CMOS射频低噪声放大器的设计
12."low cost, high reliability, compact size, light weight, low noise"成本低,可靠性高,体积小,重量轻,噪音低
13.Helps eliminate stage rumble or other low-frequency room noise such as that coming from heating, ventilation, or cooling( HVAC) systems.有助于消除舞台上的嗡嗡声或其它来自暖通空调（VAC）统的低频室内噪音。
14.In sound recording, a low frequency noise usually produced by regular variations in the speed of a system’s mechanical component.录音技术中的一种低频噪声，通常由于系统机械部件的速度有规律变化而引起。
15.The most direct method of noise control is the reduction of the noise at its source.控制噪音最直接的方法就是在噪音源处降低噪声。
16.Indentifying and suppression of low frequency noise from the rotary compressor旋转压缩机低频噪声源识别及噪声抑制
17.The Design and Applications of Low Power,Low Frequency,Low Noise Medical Chip低功耗、低频率、低噪声医学芯片的设计及应用
18.Market microstructure noise error under high frequency finance data;高频金融数据市场微观结构噪音误差
相关短句/例句
lower frequency noise低频噪音，低频干扰
3)thump[英][θ?mp][美][θ?mp]低音噪音
4)rumble[英]["r?mbl][美]["r?mbl?]低频音，噪声，隆隆声
5)low-noise低噪音
1.It is researched thelow-noise performances of diurea grease,and discovered the aryl amine diurea grease possesses low vibration value at start,but the vibration value increases rapidly and unsteady because of the particles of aryl amine diurea damages the surface of bearings.研究了双脲润滑脂的低噪音性能,发现芳胺双脲脂启动时具有低的振动值,但振动值增加迅速且不稳定,原因是芳胺双脲的微粒损伤了轴承表面所致。
2.Now asphalt pavement has been put to use more and more on highway,bridge and tunnel because of many merits such as seamless,low-noise,good planeness,droving steadily,riding comfortable and maintain easily.再结合具体工程数据进行测试和验证,最终形成三种满足需要的铺装形式和一种防水粘结层:阻燃改性SMA沥青玛蹄脂路面、低噪音排水性沥青路面和薄层抗滑层铺装层以及层间防水粘结层材料。
6)low noise低噪音
1.Pole and slot matching andlow noise drives technique for BLDC motor;无刷直流电动机极槽配合及低噪音驱动技术
2.Subsequently, Japan put into operation the relevant low-noise construction machinery regulations in 1997 under which 18 types of equipment complying with the relevant noise emission standards and bearing the 97low noise labels are allowed to be used.及后,日本在1997年颁布有关低噪音建筑机械法规,使自2002年10月起,18类建筑机械须符合有关噪音标准及贴有“97低噪音标签”,方可于指定地区内使用。
延伸阅读
工作噪音工作噪音噪音指的是非自然固有的并且超出了一定限度的声音。噪音对于人的健康是会造成一定的影响。噪音的单位是dB，根据《中华人民共和国环境噪声污染防治法》的规定以居住、文教机关为主的区域，昼间55dB、夜间45dB；居住、商业、工业混杂区，昼间60dB、夜间50dB。很显然根据这个规定，在办公室中，声音超过60dB就可以算是噪声了。打印机在工作时，由于部件需要进行机械运动，因此不可避免的会产生摩擦，从而产生一定的声音。如果声音过大的话，会对办公环境造成影响，甚至对人体健康造成危害。因此声音的大小也就成了一个技术指标。由于目前技术上的原因，许多产品的在工作时产生的声音并不能控制在60dB以下，因此也就可以称之为工作噪声。如果产品工作时产生的声音比较大的话，厂商应该在产品说明上予以标识，以确保用户的知情权，从而让用户在选购产品时能够权衡利弊。
