查询词典 a period of years

Over a period of only a few years, the slide rule gave place to the electronic calculator.

只经过了这么几年，计算尺就被电子计算器所代替了。

If we pass over a period of seventy years we find a startlingly new development.

如果我们跨越七十年的时间，就会看到另人吃惊的新发现。

Dr. Elliott said that in Argentina, researchers found that patients with multiple sclerosis who were infected with the human whipworm had milder cases and fewer flare-ups of their disease over a period of four and a half years.

艾略特博士说，在阿根廷科学家们发现，感染了人体鞭虫的多发性硬化患者病情较轻，在4年半的时期内突发病症也较少。

From a Masoretic point of view, the Mosaic code contains the history of a period of about 2,300 years.

从马所拉的角度来看，马赛克代码包含的历史，为期约二千三百年。

From a Masoretic point of view, the Mosaic code contains the history of a period of about 2,300 years.

从masoretic的角度来看，花叶代码包含的历史，为期约二千三百年。

I propose a sole agency agreement for bicy gjg les f owd a period of 3 years.

我建议订一个专销自行车的为期三年的独家代理协议。

Another recent study compared repeated preseasonal allergoid treatment with a perennial allergen regiment over a period of 3 years.

最近另一项研究把季节前类变应原的多次注射，与常年性变应原治疗方案进行比较。

There were fifty two families with two or more members serologically positive anti HCV and/or HCV RNA-a 3.46 fold increase of intrafamilial propagation of HCV infection in a period of 4 years.

对此次和4年前两次调查均采集的血清标本各352人份进行抗HCV的检测发现，抗HCV和/或HCV RNA阳性率高达43.18％(152/352)，较4年前的21.31％(75/352)有明显的增加(P＜0.01)。

Over a period of 30 years between 1967 and 1997, the population of wild chimpanzees Pan troglodytes in their natural habitats of tropical Africa has declined from 600 000 to less than 200 000 and is still declining thus raising global concern and a great need for their ex situ conservation.

1967至1997的30年间，生活在非洲热带地区自然栖息地的野生黑猩猩数量由60万降至不足20万，至今这个数字仍在减少，因此引起了全球的关注并急需要开展迁地保护。

The employer is further required in Ohio to keep a record of the wages abandoned and turned over to the state for a period of 5 years.

雇主还要求在俄亥俄州保持的记录和被遗弃的工资交给了国家，任期5年。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。