您要查找的是不是：
- environmental background noise 环境背景噪声
- There was a ceaseless background noise of machines and voices. 不停地传来机器轰鸣声和人们的说话声。
- It's all dictated by the level of background noise in their listening environment. 这些设置都取决于他们收听环境中的背景噪音水平。
- People alter their voices in relationship to background noise. 人们根据环境噪音的大小调节自己的声音。
- This text is to make a possibly detailed treatise about the healthy hospital environment in the environmental background research theor. 通过实践调查和对国内外相关资料的翻阅，笔者提出健康医院环境的新理念。
- Reduces low-level background noise in quiet environments. 衰减安静环境下低水平背景噪声。
- "Where are you?" I asked him,trying to recognise the background noise. “你在哪儿?”我问他，并竭力辨别背景噪音。
- FIX: Background noise during lower volume calls ('hissing bug') now fixed. 低音量通话时的背景燥声(咝咝声)问题得到解决。
- There is too much background noise for speech recognition to work well. 背景杂音太多了,语音识别无法正常运行。
- SAE 8000 - Not irritating but not involving, either. Too much background noise. 74 SAE 8000既不恼人也不喜人，但总是有太多的背景噪音。
- Every analogue wireless system has background noise to a certain extent. 每个模拟无线系统都有一定程度的电子干扰音。
- The present paper discusses the condition of environmental background and the formation,property,harm,controlling factors of surface subsidence in Jiangxi province. 论证了江西省地面塌陷的环境背景条件及其形成、特征、危害、控制因素以及防治对策。
- Some people like to work with the radio on for they think that a background noise may help them to concentrate . 有些人喜欢开着收音机工作，因为他们认为背景噪音可以帮助人们集中精力。
- Penetrance can be influenced by mutation-specific phenotypes and the potential modifying effects of the patient's own genetic and environmental background. 外显率则受突变特异表型和病人自身的遗传和环境背景潜在的修复效应所影响。
- Pertaining to continuously present,such as"background illumination","background noise". 用于修饰或说明连续存在（的状态），比如“背景亮度”，“背景噪声（本底噪声）”。
- Remove static, hiss, hum, or other constant background noises. 去除静电噪声、嘶嘶声、嗡嗡声或其它持续背景噪声。
- Pertaining to continuously present, such as" background illumination", " background noise" . 用于修饰或说明连续存在（的状态），比如“背景亮度”，“背景噪声（本底噪声）”。
- Both exhibit very strong robustness under various conditions such as poor illumination and cluttered background noise. 本文的主要成果包括：第一，将树状多视角人脸检测器引入粒子滤波器的概率跟踪框架，提出了一种融合了检测信息的跟踪方法，具有高鲁棒性和实时性，并解决了跟踪算法的自动初始化问题。
- Besides,China has expanded its research into comprehensive prevention and control of regional environmental pollution,environmental background values and environmental capacity,pollution control technology and global environmental problems. 开展了区域环境污染综合防治、环境背景值和环境容量、污染治理技术及全球环境问题的研究。
- To break through that background noise and mind clutter, a marketing message has to be interesting. 要突破这些杂讯以干扰，行销诉求就一定得有趣。
