这种换挡是可以察觉的。
很清楚的是，眼睛内的受体对可以察觉的蓝光部分会有所反应，以这样一种方式与所分布的睡眠褪黑激素起作用。
What is clear is that receptors in the eye react to the visible blue part of the light, to work in such a way with the distribution of the sleep hormone melatonin.
对于可以察觉的来自国家的怠慢，社区人们的表现会较为敏感，他们对于任何的改变都将可能产生极度糟糕的反应。
The community, which is sensitive to perceived slights from the state, would react badly to any change.
例如,嫉妒和愤怒可以演变为警醒,让我们察觉出极其不平等的现象。
Jealousy and anger, for example, may have evolved to alert us to important inequalities.
它们可以探测到超声波；这意味着当蝙蝠靠近，飞蛾可以察觉到它的存在。
They can detect ultrasound; this means that when a bat approaches, the moth can detect the bat's presence.
为了简化批处理文件的脚本，批处理文件必须很容易察觉安装程序什么时候完成了，以便它可以启动更新程序。
To simplify the scripting of your batch file, the batch file must easily detect when the installation program has completed, so that it can then start the update program.
然而，即使是这一类患者我们仍然可以观察到进步，就连护士和病人的家属也能察觉到病人的进步。
However, even with those patients we could notice an improvement, which was noticeable to the nursing staff and the relatives as well.
它所产生的蝇蕈素一旦进入血液，可以很快察觉。
有两种纹理类型：触觉，或视觉纹理，即你五官可以察觉到的纹理。
There are two types of texture; Tactile, or visual texture, and texture which you can detect with your five senses.
如果一个探测者可以对其周边的蛛丝马迹有所察觉，那么他们的手就会下意识地有了动作，这样就导致了探测棒抖动倾斜以暗示周边有贵重事物。
If a dowser can detect hints about their surroundings, then they make subconscious movements with their hands, forcing the rods to shake and dip, indicating they've found something of value.
在不被察觉的情况下，它们可以对我们的行为产生巨大的影响。
These can have massive influences on our behaviour without our awareness.
H1N1表明容易人际间传播并且从美国的报告提出，某些病例可以很轻微并且在之前未察觉，而疾病却进一步传播。
H1N1 appears to be passed easily from person to person, and reports from the United States suggest that some cases may be mild and therefore may go undetected, allowing the disease to spread further.
利用隐写术技术的人可以使用白噪点隐藏 “秘密” ——以难以察觉的方式转变信息。
Someone employing a steganographic technique can use this noise to hide "secrets" by altering the information in ways that cannot be easily noticed.
盲人有时似乎有一种特异功能可以察觉到他们面前的障碍物。
Well, blind humans sometimes seem to have an uncanny sense of obstacles in their path.
眼科医生通过查看视网膜可以察觉出高血压的迹象。
Eye doctors can detect evidence of high blood pressure by looking at the retina.
并且那个终点使你可以更好地发现不易察觉的小错误。
And that end is to enable you to better find as yet undetected bugs.
但是我的狗对于察觉移动的能力确保了它可以把球取回来。
But my dog's ability to detect motion will ensure he'll fetch the ball back.
短期之内，在察觉到债券的廉价后，私人股权集团会相信他们可以从购买上市公司取得高额利润。
In the short term, the perceived cheapness of debt is persuading private-equity groups that they can make big profits from buying quoted companies.
细心的男人应察觉这一顾虑，如果女人确实魅力减退，男人也无需撒谎，但也没必要说她风采不在，对于她们的魅力我们可以一直欣赏并赞扬。
There is no need to lie and say she's gorgeous if she isn't, nor is there a need to say that she is not attractive anymore. One can always appreciate and praise what you do find attractive.
然而，科学家们现在发现当人们在问题中听到物体的名字后，这些察觉不出的影像可以变得可见。
However, scientists now find that such imperceptible pictures can be made visible when people hear the name of the object in question.
在用户不知情的情况下更改账户设置，入侵者就可以将这个账户中的所有邮件转发到自己的系统中，而不被察觉。
Changing the account Settings without the users' knowledge would have let the perpetrators forward copies of all the messages in the account to their own system undetected.
但接下来的问题可以考察学生是否能察觉到，我们的身体是有办法知晓有必要提高心跳速率，以及找到可能实现它的办法的。
But follow-up questions would probe whether the student appreciates that there must be a way for the body to know it needs to raise the heart rate, and possible ways for achieving this.
或许这种假设在以前成立，但是数码拍照和光学技术在不断进步，从远处就可以轻而易举地复制你的钥匙，你甚至都不会察觉。
Perhaps this was once a reasonable assumption, but advances in digital imaging and optics have made it easy to duplicate someone's keys from a distance without them even noticing.
对对宇宙中到处都有人们看不见的物质这种观点——这种物质可以轻松地穿过差不多所有物体而不被人察觉——很难让人接受。
That the universe is filled with matter people cannot see-matter that simply passes through pretty much everything undetected-is hard to accept.
这种“服装麦克风”当然可以录下讲话，也可通过侦测人体发出的几乎难以察觉的声音来监测穿着者的健康状况。
The clothing mic could capture speech, sure.But it could also monitor health by detecting almost imperceptible sounds from the body.
这种“服装麦克风”当然可以录下讲话，也可通过侦测人体发出的几乎难以察觉的声音来监测穿着者的健康状况。
The clothing mic could capture speech, sure.But it could also monitor health by detecting almost imperceptible sounds from the body.
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