肉眼

If you have difficulty discerning star colors with the unaided eye, try looking at these stars with binoculars.

如果你用肉眼很难分辨到星星的颜色，那么就尽力用双眼去关注这些星星。

If you have difficulty discerning star colors with the unaided eye, try looking at these stars with binoculars.

如果你不能用肉眼发现，试着用望远镜看。

Rod receptors used for night vision are so dependent upon adequate oxygen supply that dark adaptation of normal eyes has been reported to be diminished at moderate altitudes above sea level due to the slight reduction in available oxygen.

用于夜视的视网膜杆感受器如此依赖充足氧气的供应，以致正常肉眼对黑暗的适应性据说在中等海拔高度就会减弱，由于可得到的氧气略微减少了。

The moon's phase is continuously changing, though, even if that change isn't perceptible to the eye.

月亮的位相是不断在变化的，尽管我们肉眼是看不出来的。

The unique leaf pattern development, visible on the Shroud, will be illustrated.

它们独特的叶子生长形状，在裹尸布上可以凭肉眼看见，我将会用图片说明。

But digitalspeak is out-of-line numbers and letters, including the number 0 ~ 9, A ~ Z letter directly to the naked eye, it is generally recognized from 8 ~ 16-bit, the number of bits different code system.

而数字标记是在线条边的数字和字母，包含0~9数字，A~Z字母，可间接为肉眼所辨别，凡是从8~16位，码制差别位数也不差别。

Electromagnetic radiation that has a wavelength in the range from about 4,000 to about 7,700 angstroms and may be perceived by the normal unaided human eye.

光，可见光：波长在4，000埃或7，700埃之间的电磁辐射，能被人的普通肉眼看见

A nuptial bed makes a nook of dawn amid the shadows. If it were given to the eye of the flesh to scan the formidable and charming visions of the upper life, it is probable that we should behold the forms of night, the winged unknowns, the blue passers of the invisible, bend down, a throng of sombre heads,around the luminous house, satisfied, showering benedictions, pointing out to each other the virgin wife gently alarmed, sweetly terrified, and bearing the reflection of human bliss upon their divine countenances.

一张新婚的床在黑夜里是一角黎明，如果允许肉眼看见这些可畏而又迷人的上天的形象，我们可能见到夜里的那些形体，长着翅膀的陌生人，看不见的蓝色的旅客，弯着腰，一簇黑影似的人头，在发光的房屋的周围，他们感到满意，祝福新婚夫妇，互相指着处女新娘，他们也略感紧张，他们神圣的容貌上有着人间幸福的反照。

For millennia, astronomy meant looking at the night sky and sketching what you saw, making star maps by estimating the relative brightnesses of stars by eye and the routes of wandering planets traced against the celestial sphere.

几千年来，天文学意味着用你的双眼在夜空中搜寻并简单记录下所看到的，凭肉眼能识别的星辰亮度来制作星图，以及记录下星辰划过苍穹那曲折的轨迹。

A nearby star, visible with the unaided eye, is ringed with two rocky asteroid belts and an outer icy halo, making it a three-ring cosmic circus.

一颗肉眼可见的附近恒星，被两个岩石小行星带和一个多冰的外围晕轮所环绕，使其成为由三个环带围绕的宇宙圆形系统。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。