查询词典 unaided eye

If you can't see the Andromeda galaxy with the unaided eye, try binoculars.

如果你用肉眼看不到，就试着用望远镜观察。

Omega Centauri is also the brightest globular cluster, at apparent visual magnitude 3.9 it is visible to southern observers with the unaided eye.

半人马座欧米伽星团也是最明亮的球状星团，其亮度大小显示为3.9星等，在南半球的观察者用肉眼就可以欣赏它了。

Benthos - animals without backbones, living in or on the sediments, a size large enough to be seen by the unaided eye, and which can be retained by a U.S. Standard No. 30 sieve (28 openings/inch, 0.595-mm openings).

底栖动物-动物的骨干，在生活或沉淀物，一个规模大到足以看出，由无外援的眼睛，以及哪些可以保留，由美国标准第3 0号筛（ 2 8开口/英寸， 0 。595毫米开口）。

About 400 light-years away toward the constellation Cetus, Mira is presently too faint to be seen by the unaided eye, but will become visible again in mid-November.

薴藁增二距离我们大约400光年远，位于鲸鱼座内，现在由于薴藁增二太昏暗，肉眼看不到，但到了11月中旬它又将变得可见。

Though the reddish hydrogen radiation is most visible to the unaided eye, the chromosphere also radiates thousands of additional spectral lines.

虽然微红色的氢射线可被肉眼直接观测到，色球层也可辐射数千额外的谱线。

However, Uranus is barely visible to the unaided eye on a crystal-clear night.

然而，在水晶般透明的夜晚，天王星用肉眼是勉强可见的。

A culet on a diamond that is too small to be resolved with the unaided eye and that can be seen only with difficulty under 10x.

culet了一个太小的钻石，加以解决，并以肉眼可以看到的只有勉强下

Even at that, it'd be a red dwarf star. These red dwarfs are thought to make up 75% of the Milky Way galaxy's stars, but these stars are so small and faint that not a single one can be seen with the unaided eye!

人们认为75%银河系是由红矮星构成的，但是由于它们是那么的小且发出光也不强，所以很难直接用肉眼识别出一颗红矮星。

Since chemical composition and other characteristics are similar, it is quite diffictl to identify spinel from ruby and sapphires with unaided eye, which is the main reason that both gemstones have been confused long time.

尖晶石的呈色机理与红蓝宝石大体相同，化学成分和其他性质也很相似，靠肉眼来识别是不可能的，因此几世纪以来，二者一直混淆不清。不过，没有像黄色蓝宝石那样颜色的黄色尖晶石，因为使黄色蓝宝石至色的铁离子使尖晶石呈浅蓝或蓝绿色。

Methods. PSF 1000 analyzer was used to measure retinal image quality for eye of 26 subjects (spherical ranged from –3.00 ~-6.00Ds, astigmatism ranged from –0.75~-3.00Dc) fitted with three forms of full correction in random order : unaided eye, with rigid gas permeable contact lenses and toric soft contact lenses. The modulation transfer function curve was observed, 12 points of the MTF curve ( equivalent 12 points of LogMar VA) was used for analysis. Results.

利用人眼点扩散函数分析系统（PSF-1000）检查和评估26例近视散光患者（年龄18~28岁，球镜–3.00DS~-6.00 DS，角膜散光-0.75DC ~-3.00DC）在裸眼、配戴散光软性角膜接触镜和透氧性硬性角膜接触镜三种全矫状态的光学成像质量，采用26眼屈光介质MTF曲线中的12个点（即分别等同于对数视力表4.0~5.1的12个点）进行比较和统计学分析，为了避免主观误差，三种矫正方式的先后顺序随机选择。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。