经过一定的时间

If anyone told me that small pieces of glass could be changed into a marble by burying them in the ground for a long time, I think I'd burst into laughter.

如果现在有人告诉我把一块碎玻璃埋在泥土里，经过一段时间这片小小的玻璃会变成一个美丽的玻璃球，我一定会马上笑出声来。

After a certain length of time, they learn to communicate in more economical ways, such as by cable .

他们经过一定时间，学会了使用如海底电报这样的更经济的方法。

A diachronic study of language is a historical study; it studies the historical development of language over a period of time.

历时性研究属于历史性的研究，它研究的是语言经过一定时间阶段所发生的历史变化。

Passes through time cui jian, Uses color classify again survey oneself once, Finding " Picture " Cure to homefelt calm have certain effect, Therefore experience for basis, Hope too can to other a friend made in hospital or people who become fri sum have negative idea people supply help benefit.

经过时间的淬鍊，用色彩分类再审视自己一遍，发现「画」疗对内心的平静有一定的成效，以此经验为基础，希望也能对其他病友和有负面想法的人提供助益。

After observation for a period of time, Lady Chen realized finally that the hill myna was mechanically imitating the promises her husband made to his lover during his phoned conversation when Chen was not home. It is unexpected that walls have ears. Some key words were learned and mechanically imitated by the well-trained hill myna. When she adduced this evidence to the testimonies, her husband was surprised very much.

经过一段时间的观察，陈女士终于回过神来：这一定是她不在家时，丈夫与情人通电话时作出的"承诺"——不料隔墙有耳，一些关键词句被这只训练有素的鹩哥依葫芦画瓢地搬了出来，当陈女士将这些证词向丈夫提出来时，丈夫惊讶万分。

In order to solve these problems, a new type of sifters——the molten sifter has been developed and after the use of a certain period of time has reached its anticipative aim and the maintenance fees are greatly been red.

针对上述问题，开发出了铸石篦条筛，经过一定时间的使用，达到了预期的效果，并且大大降低了维修费用。

After vernalization, the soluble protein of winter wheat increased.

结果表明：萌动种子经过一定时间的低温春化作用后，其抗寒能力明显增加。

The majority of wine however is despatched to Liquor Retailers soon after bottling.

高档的葡萄酒进入市场前会经过一定时间的瓶内陈酿。

On the theory of collective risk model, Ruin theory studies the probability of insurance company surplus becomes negative for the first time after a period of running of the insurance company with certain initial reserve.

集体风险模型中，破产理论研究保险公司在拥有一定初始准备金的基础上，经过一段时间经营后，盈余第一次变为负数的概率，这为保险公司减少风险、稳定经营奠定了基础。

The different points of views, transverse section, plane and volume changes are considered. The results show that the evolution of the Xinqiao Channel has experienced three stages: in 1861~1926 ,the Xinqiao Channel area had been eroded at first and then silted; the Xinqiao Channel is formed during 1926~1958 with the channel experiencing persistence erosion; from 1958 to 2002, the total volume of the Xinqiao Channel keeps stable with the volume of 5.02×108m^3. The pattern of 10m contour has shaped to a certainty in 1926 and 5m contour of the upper and lower parts of Biandansha has been joined. The change of sections of the Xinqiao Channel reflects its thalweg movement to the North Bank 1.1~2.8 km, its shape changes from "U" shape to "V" shape and its depth has been deepened.

计算结果显示在所研究的区域内自1861年以来新桥水道冲淤过程明显被分为三个阶段：1861~1926年的66a间新桥水道区域经过一段时间的冲刷后又重新产生淤积，总容积变化不大；1926~1958年的33a间新桥水道在不断的冲刷中总容积由2.603亿立方公尺增长到5.076亿立方公尺；1958年至今的45a时间里水道容积基本保持在平均5.02亿立方公尺。1926年新桥水道10m等深线已经形成一定的格局，1947年5m等深线向上延伸，扁担沙已经不再与崇明岛相连；1958年上下扁担沙的5m等深线基本连成一体，可以认为此时新桥水道已经形成。

Further more, the simplified analysis method on stressed-skin effect of corrugated steel sheet is also discussed in detail.

此外还比较详细地探讨了蒙皮效应的简化分析方法。

If I had known her telephone number,I would have called her.

要是我知道她的电话号码，我就打电话给她了。