【正文】 m of an electromagnetic field including both the radiation and induction ponents of the field.輻射無線電噪聲：電磁場(chǎng)形態(tài)的無線電噪聲能量，包括場(chǎng)的輻射分量與感應(yīng)分量。Site attenuation: The ratio of the power input to a matched balanced lossless tuned dipole radiator to that at the output of a similarly balanced matched lossless tuned dipole receiving antenna for specified polarization, separation, and heights above a flat reflecting surface. 場(chǎng)地衰減：對(duì)于規(guī)定的極化、收發(fā)天線間距及距反射平面高度，輸入匹配平衡無耗調(diào)諧偶極子輻射器的功率與同樣是匹配平衡無耗調(diào)諧的偶極子接收天線輸出功率之比值。Ambient level: The values of radiated and conducted signal and noise existing at a specific test location and time when the test sample is not activated. 背景電平：受試樣品尚未啟動(dòng)時(shí)，在指定試驗(yàn)地點(diǎn)與時(shí)間存在的輻射的和傳導(dǎo)的信號(hào)及噪聲之量值。 screened room: A mesh or sheet metallic housing designed exclusively for the purpose of electromagnetically separating the internal and. the external environment. 屏蔽殼體、屏蔽室：專門設(shè)計(jì)用來隔離內(nèi)外電磁環(huán)境的網(wǎng)狀或薄板金屬殼體。Ground reference plane: A flat conductive surface whose potential is used as a mon reference. 接地（參考）平面：一塊導(dǎo)電平面，其電位用作公共參考電位。）Current probe: A device for measuring the current in a conductor without interrupting the conductor and without introducing significant impedance into the associated circuits. 電流探頭：在不斷開導(dǎo)體且不對(duì)相應(yīng)電路引入顯著阻抗的情況下，測(cè)量導(dǎo)體電流的裝置。Vnetworks: An artificial mains network enabling the voltages between each conductor and earth to be measured separately. (The Vnetwork may be designed for application to networks of any number of conductors.). V形網(wǎng)絡(luò)：能夠分別測(cè)量每個(gè)導(dǎo)體對(duì)地電壓的人工電源網(wǎng)絡(luò)。它在給定頻率范圍內(nèi)，為騷擾電壓的測(cè)量提供規(guī)定的負(fù)載阻抗，并使被試設(shè)備與電源相互隔離。Artificial mains network。Tabletop device: A device designed to be placed and normally operated on the raised Surface of a table, ., most personal puters. 桌面設(shè)備：設(shè)計(jì)成放置在桌面上使用的設(shè)備，例如大多數(shù)個(gè)人計(jì)算機(jī)。Commonmade radio noise: Conducted radio noise that appears between a mon reference plane (ground) and oil wires of a transmission line, causing their potentials to be changed simultaneously, and by the same amount relative to the mon reference plane (ground). 共模無線電噪聲：出現(xiàn)在公共參考面（地）與傳輸線所有導(dǎo)線之間，造成它們的電位同步變化且相對(duì)于公共參考面（地）數(shù)值相同的傳導(dǎo)無線電噪聲。Power line conducted radio noise: Radio noise produced .by equipment operation, which exists on the power line of the equipment and is measurable under specified conditions. Note: It may enter a receptor, such as ITE, by direct coupling or by subsequent radiation from some circuit elements. 電源線傳導(dǎo)無線電噪聲：設(shè)備工作時(shí)產(chǎn)生的無線電噪聲，它存在于設(shè)備的電源線上，并可在規(guī)定條件下進(jìn)行測(cè)量。Lowvoltage electrical and electronic, equipment: Electrical and electronic equipment with operating input voltages of up to 600 V DC or 1000 V AC. 低壓電氣與電子設(shè)備：工作時(shí)輸入的直流電壓不高于600 V或交流電壓不高于1000V的電氣、電子設(shè)備。Interference suppression: Action that reduces or eliminates electromagnetic interference. 干擾抑制：削弱或消除電磁干擾的措施。 suppression ponent: A ponent specially designed, for disturbance suppression. 抑制器：專門設(shè)計(jì)來抑制騷擾的器件。Earthcoupled interference, groundcoupled interference: Electromagnetic interference resulting from, an electromagnetic disturbance coupled from one circuit to another through, a mon earth or groundreturn path. 地耦合干擾：電磁騷擾從一電路通過公共地或地回路耦合到另一電路從而引起的電磁干擾。Electromagnetic patibility level: The specified maximum electromagnetic disturbance level expected to be impressed on a device, equipment, or system operated in particular conditions. 電磁兼容電平：預(yù)期加在工作于指定條件的裝置、設(shè)備或系統(tǒng)上的規(guī)定的最大電磁騷擾電平。Intersystem electromagnetic patibility: The condition that enables a system to function without perceptible degradation caused by electromagnetic sources in another system. 系統(tǒng)間電磁兼容性：使系統(tǒng)能夠不出現(xiàn)由另一系統(tǒng)電磁源造成明顯性能降低的條件。（因?yàn)樵诤芏嘞到y(tǒng)中干擾難以測(cè)量，所以在英文中干擾限值一詞常常用騷擾限值替代。Limit of interference：Maximum permissible degradation of the performance of a device, equipment or system duo to an electromagnetic disturbance (Because of the difficulty of measuring: interference in many systems, frequently the term limit of interference is used in English instead of limit of disturbance.) 干擾限值（允許值）：（電磁騷擾使裝置、設(shè)備或系統(tǒng)最大允許的性能降低。External immunity: Ability of a device, equipment, or system to perform without degradation in the presence of electromagnetic disturbances entering other than via its normal input terminals or antennas. 外部抗擾性：裝置、設(shè)備或系統(tǒng)在電磁騷擾經(jīng)由除常規(guī)輸入端或天線以外的途徑侵入的情況下，能正常工作而無性能降低的能力。Immunity margin：39。Immunity level: The maximum level of a given electromagnetic disturbance incident on a particular device, equipment, or system for which it remains capable of operating at a required degree of performance.抗擾性電平：將給定電磁騷擾施加于某一裝置、設(shè)備或系統(tǒng)而其仍能正常工作并保存所需性能等級(jí)時(shí)的最大騷擾電平。）Immunity (to a disturbance): The ability of a device, equipment, or system to perform without degradation in the presence of an electromagnetic disturbance. （對(duì)騷擾的）抗擾性：裝置、設(shè)備或系統(tǒng)面臨電磁騷擾而不降低運(yùn)行性能的能力。INTERFERENCE CONTROL 干擾控制Electromagnetic susceptibility: The inability of a device, equipment, or system to perform, without degradation in the presence of an electromagnetic disturbance. (Susceptibility is a lack of immunity.) 電磁敏感性：在存在電磁騷擾的情況下，裝置、設(shè)備或系統(tǒng)不能避免性能降低的能力特性。Quasiimpulsive noise: Electromagnetic noise equivalent to a superposition of impulsive noise and continuous noise. 準(zhǔn)沖擊噪聲：等效于脈沖噪聲與連續(xù)噪聲的疊加的電磁噪聲。Continuous disturbance: Electromagnetic disturbance, the effects of which on a particular device or equipment cannot be resolved into a succession of distinct effects. 連續(xù)騷擾：對(duì)一個(gè)特定設(shè)備的效應(yīng)不能分解為一串能清晰可辨的效應(yīng)的電磁騷 擾。Surge letthrough: That part of the surge that passes by a surge protective device with little or no alteration. 允過浪涌：很少變化或無變化地通過浪涌防護(hù)裝置的那部分浪涌。Surge (surgeprotective device): A transient wave of current, potential, or power in an electric circuit. 浪涌（浪涌防護(hù)裝置）：電路中的電流、電勢(shì)或功率瞬態(tài)波。）給定瞬間其值不可預(yù)測(cè)而只有統(tǒng)計(jì)意義的電磁噪聲。Impulsive disturbance: Electromagnetic noise that, when incident on a particular device or equipment, manifests itself as a succession of distinct pulses or transients. 脈沖騷擾：在某一特定裝置或設(shè)備上出現(xiàn)的、表現(xiàn)為一連串清晰脈沖或瞬態(tài)的 電磁騷擾。Pulse count: The number of pulses in some specified time interval. 脈沖計(jì)數(shù)：在指定時(shí)間間隔內(nèi)脈沖的個(gè)數(shù)。DISTURBANCE WAVEFORMS 騷擾的波形Transient: Pertaining to or designating a phenomenon or a quantity