Under good conditions, it can just be glimpsed with the unaided eye . Even binoculars reveal countless multitudes of stars that cannot be seen by the unaided eye . The naked eye can see about 3,000 stars. These particles are usually difficult to detect from naked eyes . It contains about 2,900 stars and could be seen with the unaided eye .
Actually, triangles can also be seen by the naked eye . The International Space Station can easily be spotted with the naked eye .It is not possible to differentiate between a natural diamond and synthetic diamond with naked eye . 这层很薄,用肉眼 看不到,这意味着金属表面仍然有光泽。 This layer is so thin that it can not be seen with the naked eye , which means that the metal surface is still shiny. 用肉眼 你可以看到数百万年前的景象,但是几十亿年呢?With the unaided eye , you can look millions of years into the past, but how about billions? 在阿尔卡季普拉斯托夫的作品中,人们可以用肉眼 看到对农村生活,农民的真正热爱; In the works of Arkady Plastov one can see with the naked eye the genuine love of rural life, the peasantry; 孔雀座λ(Lambda)是一颗璀璨的不规则变星,亮度在3.4至4.4之间变化,可以用肉眼 直接观测。 Lambda Pavonis is a bright irregular variable ranging between magnitudes 3.4 and 4.4; this variation can be observed with the unaided eye . 这些较小的颗粒是无法用肉眼 看到的,并且可以被吸入到肺部最深处。 These smaller particles cannot be seen with the naked eye and can be inhaled into the deepest part of the lungs. 尽管有时可以用肉眼 检测到这种情况,但在精子图中通常会检测到精子症。 Despite the fact that sometimes this condition can be detected with the naked eye , most often pyospermia is detected during spermograms. 孔雀座λ(Lambda)是一颗璀璨的不规则变星,亮度在3.4至4.4之间变化,可以用肉眼 直接观测。 LambdaPavonis is a bright irregularvariable ranging between magnitudes 3.4 and 4.4; this variation can be observed with the unaided eye . 虽然我们无法用肉眼 看到μ子,但科学家可以借助特殊胶片和探测器发现它们,并跟踪它们的3D轨迹。 While we can't see muons with the naked eye , scientists can spot them with special films and detectors that trace their 3-D paths. 麦哲伦云可以用肉眼 在夜空中看到,并且已经被古代文化观察了数千年。 The Magellanic Cloudscan be seen in the night sky with the naked eye and have been observed by ancient cultures for thousands of years. 麦哲伦星云可以用肉眼 在夜空中看到,并且在古代文化中已经有人们观察了几千年的历史。 The Magellanic Cloudscan be seen in the night sky with the naked eye and have been observed by ancient cultures for thousands of years. 如果可以用肉眼 观察,那么光环将是满月在天空直径的100倍。 If it could be viewed with the naked eye , the halo would be 100 times the diameter of the full moon in the sky.如果你能远离城市和高速公路的光污染,就有可能用肉眼 看到猎户座大星云。 If you can get away from the light pollution of cities and highways, it's possible to see the Orion Nebula with the naked eye . 此外,NV背光也比标准的背光调光器,使之更难以检测用肉眼 在夜间作业。 Additionally, NV backlights are also much dimmer than a standard backlight, making it more difficult to detect with the naked eye in night operations. 所有的报导都分享共同的主题,那就是该物体像星星,当人们用肉眼 看着它时,它没有移动。 All the reports share the common theme that the object is star-like and does not move when viewed with the naked eye . 如果这次彗星经历类似的爆发,这个时候有机会变得足够明亮,用肉眼 看到。 If the comet experiences similar outbursts this time, there's a chance it could become bright enough to see with the naked eye . 因此,例如,您可能会看到在他们自己的轮廓,如你所见我现在,用肉眼 。 So that, for instance, you may see in them your own lineaments, as you see mine now, with the naked eye .". 无论你在哪里观察日食,重要的是不要用肉眼 直视太阳。 Regardless of where you observe the eclipse, it's important not to look directly at the sun with the naked eye . 一些颗粒,如灰尘,污垢,烟灰或烟雾,大到足以用肉眼 看到。 Some particles, such as dust, dirt, soot, or smoke, are large enough to be seen with the naked eye . 这些鸟的特点是扇动翅膀高速的地步,人眼无法用肉眼 看到的。 These birds are characterized by flapping its wings at high speed to the point where the human eye can not see with the naked eye . 我们再也看不到斯图达特的纳米机器,这比一根头发的宽度小一千倍,用肉眼 。 We can never see Stoddart's nanomachines, which are one thousand times smaller than the width of a single human hair, with the naked eye . 答案还可以加速新一代的机器人,这些机器人几乎不足以用肉眼 看到。 An answer could also accelerate a new generation of robots that are barely large enough to be seen with the naked eye .
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