| 1. | Verification regulation of octave - band and one - third - octave band filters
倍频程和1 3倍频程滤波器检定规程 |
| 2. | Standard test method for evaluating masking sound in open offices using a - weighted and one - third octave band sound pressure levels
用a加权和1 3倍频带声压级评价敞开式办公间掩蔽声的标准试验方法 |
| 3. | Test results are analyzed in one third octave band spectrums mainly regarding vibration - sensitive instruments and emphasizing on low frequency band
测试结果的分析主要是针对振动敏感仪器的，在频域内采用1 / 3倍频程频谱，重点考虑低频段的地面响应。 |
| 4. | Electroacoustics - instruments for measurement of aircraft noise - performance requirements for systems to measure one - third - octave band sound pressure levels in noise certification of transport - category aircraft
电声学.航空噪声测量.运输机噪声检定测量三分之一带宽倍频声压级装置性能要求 |
| 5. | Electroacoustics . instruments for measurement of aircraft noise . performance requirements for systems to measure one - thirs - octave band sound pressure levels in noise certification of transport - category aeroplanes
电声学.航空噪声测量仪.运输机噪声检定的三分之一倍频带声压级系统测量用性能要求 |
| 6. | Electroacoustics - instruments for measurement of aircraft noise - performance requirements for systems to measure one - third - octave band sound pressure levels in noise certification of transport - category aeroplanes
电声学.航空噪声测量仪器.在运输机噪声鉴定中测量三分之一带宽倍频声压级装置的性能要求 |
| 7. | This subject aim at designing a series of several octaves band and low noise figure middle power mini - package amplifer which frequency include 1 - 8ghz 、 1 - 18 ghz and 5 - 10ghz band , using non - packaged gaas phemt and mic technology , under the basic of analyzing and searching broadband matching technology
本文所报道的系列微波放大器具有多倍频程带宽、低噪声、中功率、微封装等特性,工作频段包括1 - 8ghz 、 1 - 18ghz 、以及5 - 10ghz 。 |
