Existing question for the environment noise standard and its revising;
浅谈环境噪声标准存在的问题与修订要点
This paper introduces the development and current status of some important noise standards about internal combustion engines in China.
主要介绍我国内燃机噪声标准的发展和现状,以及现行标准应用中应注意的问题,并对标准的制订和修订、贯彻与执行提出了对策和建议,旨在提高噪声测量与评价的质量,促进降噪工作的开展。
EPA also enforces noise standards for trucks and airplanes.
环保局对卡车和飞机也规定了噪音标准。
Estimating the Standard Deviation of Noise via Controlled Function
基于控制函数估计图像噪音的标准方差
The whole power pack is a simple and complete independent system that has a very good noise proof processing, which reaches corresponding standard.
整组动力箱成一简单完整的独立系统且隔音处理良好噪音符合标准。
The permits restrict the use of equipment in accordance with stringent criteria and ban noisy manual activities in built-up areas.
许可证根据严格的标准，限制可使用的设备，并禁止在楼宇林立地区，进行高噪音的人手作业。
Zhenjiang zetai Bearing Plant especially produces"0" grade deep-groove ball bearing and various low-noise, non-standard and specially required bearings.
镇江泽泰轴承有限公司专业生产“0”类深沟球轴承及各种低噪音，非标准及特殊要求的轴承。
Standard of aircraft noise for environment around airport
GB9660-1988机场周围飞机噪声环境标准
Standard volume indicators
GB/T17311-1998标准音量表
standard tuning frequency
GB/T3451-1982标准调音频率
Wing Standardized Test of Musical Intelligence
温氏音乐智力标准测验
The Standard of Music Curriculum and Reform of Radical Music Education;
音乐课程标准与基础音乐教育的改革
A trademark used for an electronic device that eliminates noise from recorded sound and audio signals.
道尔贝降噪系统一种能从录音或声音信号中消除噪音的电子装置的商标名
A Calculation Method for the Output Noise Temperature of Standard Thermal Noise Source
一种热噪声标准源等效输出噪声温度的计算方法
Method for impact sound extraction in industrial noisy environment
工业现场强噪声环境下目标声音片段的提取
A SIMPLE METHOD FOR CALIBRATION OF UNDERWATER STANDARD NOISE SOURCE--PULSE METHOD CALIBRATION
校准水下标准噪声源的一种简易方法——脉冲校准法
She has keyed the piano up to concert pitch.
她已经把钢琴的音调升到音乐会的音高标准。
She keyed the piano up to concert pitch
她把钢琴的音调提高到音乐会的音高标准。
Key a piano up to concert pitch
把钢琴的音调升高到音乐会的音高标准
They keyed a piano up to concert pitch.
他们把钢琴的音调升高到音乐会的高音标准。