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- 连续等效噪声级(Leq)the equivalent noise grade in succession (Leq)
- 传声器等效输入声压equivalent input sound pressure of microphone
- 等效噪声模型equivalent noise model
- 电-液伺服系统的等效噪声带宽及其精度分析Equivalent Noise Bandwidth of the Electro Hydraulic Servo System and Analysis of Its Accuracy
- 干涉仪锁相环等效噪声带宽高精度测量的仿真实现Realizing High Accurate Measurement by Simulation of the Equivalent Noise Bandwidth of Interferometer Phase-locked Loop
- 噪声级level of noise
- 级联connection
- 校级field rank
- 低噪声放大器模块化分析与设计的等效噪声模型法的研究Study on Modularized Analysis and Design for Low-Noise Amplifier Using the Equivalent Noise Model Method
- 英语四级English Band 4
- 大学英语四级College English Band 4
- 一级的firstlevel
- 船级ship' classification
- 噪声污染noise pollution
- 三级片third-grade film
- 城里的交通噪声总是使城市居民烦恼。The noisy traffic is a continual annoyance to the citizens.
- 无级stepless
- 级配graduation
- 传声器噪声mike stew
- 两级two-stage