肉眼

After selection of 7 days,some HB214 cells with F' factor from GM133 cells and lac+ mutation were observed,but these cells failed to form the colonies which can be seen by the naked-eye.

在培养了7d的选择平板上添加含链霉素的M9选择培养基，2d 后也观察到大量发生lac+突变但没有形成肉眼可见菌落的营养收集细胞。

Events such as the naked-eye burst "are cracking away at the simple picture" theorists have assembled over the past decade, says astrophysicist Joshua Bloom of the University of California, Berkeley.

加州大学伯克利分校的天体物理学家乔舒亚·布卢姆指出，在理论学家们利用过去十年的资料所拼凑起来的那幅简单画面中，肉眼可见的爆发事件是不存在的。

" Colloid : Substance consisting of particles that, although too tiny to be seen with the unaided eye (typically 1 nanometre to 10 micrometres), are substantially larger than atoms and ordinary molecule s and that are dispersed in a continuous phase."

胶体：由比原子或普通分子大得多，但远小于肉眼可见的微粒组成的物质。这种粒子的大小大约在10-7～10-3公分，并且以各种方式连接或键合在一起。

" Colloid : Substance consisting of particles that, although too tiny to be seen with the unaided eye (typically 1 nanometre to 10 micrometres), are substantially larger than atom s and ordinary molecules and that are dispersed in a continuous phase."

胶体：由比原子或普通分子大得多，但远小于肉眼可见的微粒组成的物质。这种粒子的大小大约在10-7～10-3公分，并且以各种方式连接或键合在一起。

Radar and/or camera systems have been successfully trialLED for 6 or 7 months now, and are proving more reliable than human sight, especially at night or in bad weather.

雷达或/与摄影系统已经成功地试用了六七个月，事实证明，它们比肉眼更可靠，特别是在晚上和恶劣天气里。

It is believed that the SA-3 crews and spotters were able to locate and track F-117A 82-806 visually, probably with the help of infra-red and night vision systems.

有理由相信SA-3的发射部队和观测员的确能够通过肉眼(可能还需要红外或者夜视设备的帮助)定位和跟踪

Explanation: M4 is a globular cluster visible in dark skies about one degree west of the bright star Antares in the constellation Scorpius. M4 is perhaps the closest globular cluster at 7000 light years, meaning that we see M4 only as it was 7000 years ago, near the dawn of recorded human history. Although containing hundreds of thousands of stars and spanning over 50 light-years, M4 is one of the smallest and sparsest globular clusters known. A particularly unusual aspect for a globular cluster is M4's central bar of stars.

M4是一个肉眼可见的球状星团，位于天蝎座心宿二的东面约一度位置。M4可能是最靠近我们的球状星团距离约7000光年，这意味着我们看到的是7000年以前的M4，即人类历史有文字记载的开始阶段，它跨越50光年包含有数10万颗恒星。M4是已知在尺度及包含恒星数量上最小的球状星团。M4独特之处是它中心的棒状结构。

We might say that the first plants or animals were bodies living in one-roomed houses, too small for man's eyes to see.

我们可以说，最初的动植物都是生活在单间&房屋&内的机体，小得肉眼看不见。

To determine the effect of colloid on the transport of Cadmium in a repacked soil column with quartz veins;4.To determine the effect of colloid on the transport of Cadmium in field soil monolith and the extent to which the distribution of Cadmium in the profile were associated with the observed preferential flow paths.

另外，对于在生命活动旺盛的土壤中普遍存在的优势流研究也仅停留在室内小型土柱或肉眼可见的几种示踪剂上，并且鲜有关于污染物在土壤剖面中究竟如何分布及优势流对污染物迁移的直接影响的报道。

But to fishermen and publicans it had been given to see the Invisible.

但肉眼所看不见的神性，却显给渔夫和税吏们看。

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。