In fact, the answer is fairly simple, and can be summed up in two words: ambient noise.
事实上，问题的答案非常简单，简单到可以用两个字来概括：周围的杂音。
Grandin says that people with Asperger's also tend to be extrasensitive to their environment, including lighting and ambient noise.
戈兰丁认为患有亚斯伯格症的人还对他们的环境极度敏感，包括灯光，周围的噪音。
With sound being an even more important sense for the visually impaired, these would be open headphones to allow ambient noise to be heard.
由于声音对视觉受损人来说是个很重要的感官，所以耳机要选用开放式的，以避免听不到周围的声音而造成意外事故。
On the subway system here in Boston, the ambient noise levels are very comparable to the level on an airplane, although it sounds very different.
在波士顿的铁路系统中，其环境噪音水平与飞行中的飞机不相上下，虽然它们听起来不大一样。
There are many attributes of normal human conversation that should be avoided, such as coughs, keyboard clacking, as well as excessive line or ambient noise.
应当避免混入很多其他交谈特性，例如咳嗽、键盘噼啪响声以及过度的电话线或环境噪声。
"But the real question though is whether there is enough ambient noise to act as a power source as for a cell phone," said McAlpine.
“但是真正的问题是，是否存在足够强的环境噪音来充当手机的能量源，”麦艾尔·派恩说。
Engineers studied how to remove or block sounds, and applied high-tech materials to subdue ambient noise.
工程师们努力钻研如何消音或隔音，再运用高技术材料消除环境噪音。
More than that, it USES geolocation and ambient-noise-matching technology to figure out where a person is and then automatically shares his photos with other nearby people and vice versa.
更重要的是，通过使用地里位置和环境声音匹配技术，能够测算出某人所处的位置，并且自动与附近的人分享照片，当然他也能够分享别人的。
The noise in the shell increases along with the level of ambient noise in the surrounding area.
贝壳中的声音会随着周围杂音的音量变大而增强。
These perforated aluminum panels are not only serve as architectural elements, but also help to block the ambient noise, and allow light and air to enter without sacrificing privacy.
这些多孔铝板不仅作为建筑构件，也有助于阻挡环境噪音，在不影响隐私的情况下让光线和空气进入。
Over that time span, ambient noise levels went up.
在这段时间内，环境噪声分贝直线上升。
环境噪声抑制。
If you do have headphones in, keep the volume low enough so you can still hear ambient noise around you.
如果走路用手机时戴着耳机，将音量调低，让自己能够听到周遭的声音。
No external ambient noise around the user is picked up.
各地用户无需外部环境噪声回升。
Infants are often comforted by swaddling, ambient noise, and movement, as in rocking or swinging in a swing.
婴儿常常通过襁褓、环境声音和运动进行安抚，如摇、荡秋千。
The measurement of object signals and ambient noise at sea, as well as the analysis of its results are described in this paper.
本文主要论述对海上目标信号和海洋环境噪声的测量及其结果的分析。
The research indicated that, GIS method is an ideal technologic tool in evaluating regional ambient noise and has good application prospect.
研究表明，G IS方法是区域环境噪声评价理想的技术工具并具有良好的应用前景。
In sound recording, interference, such as ambient noise and reverberation, degrade the quality.
录音时，环境噪声和回响之类的干扰使录音质量劣化。
Rapid prediction of ambient noise field in complicated stratified shallow water that varies both with time and location is significant for a sonar system to match its environment.
海洋环境噪声场是一个随地域、时间变化的复杂的场，现场快速预报对于环境匹配的声纳系统有重要意义。
The early fault signal is very faint, low frequency appears more to pulse, easy to be interfered by the ambient noise even submerged.
早期故障信号非常微弱，多呈现低频脉动，容易受到噪声干扰甚至被环境噪声所淹没。
With broad application prospect, this solution can be extended to the field of speech recognition, ambient noise monitoring and laboratory measurement etc.
可以推广到语音识别、环境噪声监测和实验室测量等多种领域，应用前景广阔。
Based on study of multi-section wind inversion, a modified method is proposed for evaluation of wind speed by ocean ambient noise.
基于按风速分段法反演风速的研究，提出了一种海洋环境噪声估计风速的修正方法。
The regional noise in Yichun was monitored and evaluated from three aspects that were the regional ambient noise, 24 hours functional areas noise and the traffic noise.
从区域环境噪声、24小时功能区噪声和交通噪声三个方面对伊春区域噪声进行监测评价。
Zero-crossing detector is capable of predicting the shape changes of power spectrum so as to find the newly emerged moving sound sources in ambient noise.
过零检测器可以通过预报功率谱形状的变化来发现环境噪声中新出现的运动声源，研究了过零检测器的检测性能。
Conclusion the construction planning of the areas surveyed accords with criteria for ambient noise.
结论所调查小区的规划建设基本合理，总体可以满足环境噪声标准的要求。
Conclusion the construction planning of the areas surveyed accords with criteria for ambient noise.
结论所调查小区的规划建设基本合理，总体可以满足环境噪声标准的要求。
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