noise level是什么意思

网络释义

用法例句

After retrofitting not only the water-dropping noise of the cooling tower has been reduced 13 dB, but also the outlet water temperature being lowered by 2.

改造后,冷却塔落水噪音降低了13dB,出塔水温降低了2。

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。