Radio-frequency connectors-RF coaxial connectors with inner diameter of outer conductor 7 mm (0,276 in)with screw coupling-Characteristic impedance 50 ohms (75 ohms)(Type N)

射频连接器.外导体的内径为7mm(0.276in),螺纹连接,特性阻抗为50Ω,75Ω的射频同轴连接器(N型)

属类：行业标准名称-国际标准-BS QC 222100-1997

Radio-frequency connectors-RF coaxial connectors with inner diameter of outer conductor 4,13 mm (0,163 in)with screw coupling-Characteristic impedance 50 ohms (Type SMA)

射频连接器.外导体内径为4.13mm(0.163in),螺纹连接,特性阻抗为50Ω的射频同轴连接器(SMA型)

属类：行业标准名称-国际标准-BS QC 221100-1997

Radio-frequency connectors-RF coaxial connectors with inner diameter of outer conductor 6,5 mm (0,256 in)with bayonet lock-Characteristic impedance 50 ohms (Type BNC)

射频连接器.外导体内径为6.5mm(0.256in)的卡口锁定射频同轴连接器.特性阻抗为50Ω(BNC型)

属类：行业标准名称-国际标准-BS QC 221200-1997

Methods of measurement of screening efficiency for radio-frequency coaxial cables (Test method for transfer impedance )

射频同轴电缆屏蔽效率测量方法(转移阻抗法)

属类：行业标准名称-国家标准名-GB/T9023-1988

acoustic driving-point impedance

声激励点阻抗

属类：综合句库-英汉综合-

Acoustics-Determination of sound absorption coefficient and impedance in impedance tubes-Part 1: Method using standing wave ratio

声学 阻抗管中吸声系数和比阻抗率的测量 第1部分:驻波比法

属类：行业标准名称-ISO标准-

Acoustics-Determination of sound absorption coefficient and impedance in impedance tubes-Part 2: Transfer-function method

声学 阻抗管中吸声系数和比阻抗率的测量 第2部分:传递函数法

属类：行业标准名称-ISO标准-

acoustic impedance meter/bridge

声阻抗仪,声阻抗桥

属类：化学及生命科学-医学词汇-

They use a bridge to measure the impedance of the transducer

他们用电桥来测量传感器的阻抗

属类：综合句库-典型例句-

antenna self-radiation impedance

天线自辐射阻抗

属类：综合句库-英汉综合-

Instruments for the measurement of aural acoustic impedance /admittance.

听觉阻抗/导纳的测量用仪器

属类：行业标准名称-国际标准-NF C97-615-1993

Communication cables-Specifications for test methods-Part 1-11 : electrical test methods-Characteristic impedance , input impedance, return loss.

通信电缆.试验方法规范.第1-11部分:电气试验方法.阻抗特性、输入阻抗、回路损耗

属类：行业标准名称-国际标准-NF C93-537-1-11-2002

Communication cables-Specifications for test methods-Electrical test methods-Characteristic impedance , input impedance, return loss

通信电缆.试验方法规范.电气试验方法.特性阻抗、输入阻抗、回路损耗

属类：行业标准名称-国际标准-BS EN 50289-1-11-2002

Test methods for communication cable--Impedance and impedance irregularities test of coaxial pair--Pulse method

通信电缆试验方法同轴对端阻抗及内部阻抗不均匀性试验脉冲法

属类：行业标准名称-国家标准名-GB/T5441.4-1985

Test methods for communication cable--Characteristic impedance test of coaxial pair--Resonance method

通信电缆试验方法同轴对特性阻抗实部平均值试验谐振法

属类：行业标准名称-国家标准名-GB/T5441.5-1985

COAXIAL CONNECTION DEVICES SERIES E IMPEDANCE : 75 OHMS FOR GENERAL PURPOSE.

通用75Ω阻抗E系列同轴连接装置

属类：行业标准名称-国际标准-NF C93-568-1985

SOIL : INVESTIGATION AND TESTING. AUSCULTATION OF BURIED WORK. PART 4 : IMPEDANCE TEST.

土壤的调查与试验.地下工程的检测.第4部分:阻抗试验

属类：行业标准名称-国际标准-NF P94-160-4-1994

To achieve the high impedance required specially designed "electrometer" vacuum tubes, field effect transistor must be used in the input stage

为适应高阻抗需要,仪器输入电路中须用特殊设计的静电计专用电子管、场效应晶体管。

属类：综合句库--

Radio-frequency connectors-Two types of radio-frequency connectors with inner diameter of outer conductor 9,5 mm (0,374 in)with different versions of screw coupling-Characteristic impedance 50 oh

无线电频率联接器.用螺纹耦合的不同形式的9.5mm外导体的内径无线电频率联结器的两种类型

属类：行业标准名称-国际标准-BS EN 60169-21-1997

impedance cardiogram (abbr.ICG)

心阻抗图血流,心阻抗图,阻抗心动图

属类：化学及生命科学-医学-医学术语

The product of the velocity and density of a rock is termed in the acoustic impedance

岩石的波速和密度之乘积称为声波阻抗。

属类：综合句库--

A device which has an extremely high input impedance , low switching speed and low power consumption

一种高输入阻抗、低开关速度及低功耗的半导体器件。

属类：综合句库--

A logic family that may be in one of three states rather than the usual twoDhigh,low,or high impedance .In the high impedance state,output voltage is unaltered. Logic in a high impedance state may be easily and permanently connected to a bus

一种可以是三个状态之一而不是两个状态之一的逻辑电路体系。三个状态是高、低或高阻抗。在高阻抗状态,输出电压不改变。高阻抗状态的逻辑电路可以容易并永久地连接到某总线。

属类：综合句库--

A resistor connected across the output of a device or circuit to hold the output equal to or less than the 0 input level. Also used to lower the output impedance of digital or analog devices. It is usually connected to a negative voltage or ground

一种跨接在器件或电路输出端的电阻,以保持此输出等于或小于0输入电平,也用于降低数字或模拟器件的输出阻抗。通常用来连接负电位或接地。

属类：综合句库--

Printed boards and printed board assemblies-Design and use-Part 1-2 : generic requirements-Controlled impedance .

印制板和印制板组件.设计和使用.第1-2部分:一般要求.受控阻抗

属类：行业标准名称-国际标准-NF C93-711-1-2-2000

Printed boards and assemblies-Design and use-Generic requirements-Generic requirements-Controlled impedance

印制板和组件.设计和使用.常规要求.控制阻抗

属类：行业标准名称-国际标准-BS EN 61188-1-2-1998

High frequency electromagnetic impedance measurements for characterization, monitoring and verification efforts. 1998 annual progress report

用于特征化、监视和查证工作的高频电磁波阻抗测量/1998年度进展报告

属类：应用文体-论文标题-

Since voltage drop is proportional to the magnitude of the load current flowing through the entire power system impedance , the customer who is electrically farthest from the substation will receive the lowest voltage.

由于电压降与流过整个电力系统阻抗的负荷电流成比例,因此电气上离变电站最远用户的电压最低。

属类：工程技术-电力英语-

Input impedance of a network when the output is short-circuited,shorted or grounded

在(电)网络中,当输出短路、短接或接地时的输入阻抗。

属类：综合句库--

It is possible for the feed system to have a low impedance , looking downstream from the pressure source at a certain frequency

在压力源下游,供应系统在某一频率下可能有一低的阻抗。

属类：综合句库--