营养和免疫的关系已经成为近五十年研究的主题。
The relationship between nutrition and immunity has been a topic of study for more than five decades.
但是，自二十世纪五十年代以来一些技术的发展为这些学科的研究提供了更健全、更客观的基础。
A number of techniques developed since the 1950s, however, have placed the study of these subjects on a sounder and more objective footing.
上世纪五十年代早期，研究人员发现掌握超过一门语言的人在智力测试上得分更低。
In the early nineteen fifties, researchers found that people scored lower on intelligence tests if they spoke more than one language.
除此之外，普西还有一项重任在肩，即保管22个装满野外科考数据的档案柜，这些用英语或斯瓦西里语（Swahili）记录的笔记本、日记和表格就是五十年冈贝黑猩猩研究的最好见证。
Among other duties, she curates the 22 file cabinets full of field data—the notebooks and journal pages and check sheets, some in English, some in Swahili—from 50 years of chimp study at Gombe.
不过我当初不会这么描述那个时代，我当初研究时是五十年代。
Now, I wouldn't have described it that way in the 1950s when I was doing this.
洛桑研究院的Broadbalk实验，五十年来一直在跟踪蚜虫的侵扰。
Rothamsted Research, home to the Broadbalk experiment, has been tracking aphid infestations for 50 years.
输流管道耦合振动问题是近五十年来管道流体力学、非线性动力学等领域研究的热点。
The question of coupled vibration of fluid-conveying pipes is hotspot in the research areas of pipeline fluid Mechanics and Nonlinear Dynamics for late fifty years.
重要性概念是会计和审计中的一个重要概念，也是业内人士近五十年来付出大量努力进行研究的概念。
Materiality is an important concept in accounting and auditing, the past five decades have seen substantial research effort devoted to studying the concept of materiality.
也正是基于这样的考虑，我遂选择了《中国五十年反失业政策研究(1949 ~ 1999)》作为自己的博士学位论文。
It is just based on this consideration that I choose "Research on the anti-unemployment policies in China's fifty years (1949-1999)" as my Ph. d.
在过去的五十年里，在研究中已经取得了很大的进步，从这些发现置入新的治疗方案出现了。
Over the past fifty years, great strides have been made in the study of osseointegration, and from these findings new therapeutic options have emerged.
自从二十世纪五十年代末MM理论提出以后，对公司资本结构问题的研究一直经久不衰，成为国外金融领域热门的课题之一。
Since the MM theory was developed in the late 1950, the study on capital structure has become one of the hottest topics in the financing research field in the world.
本文主要介绍了近五十年来国外在这一领域内的一些重大研究成果。
This paper mainly introduces some significant research achievements of this field in western countries in the...
自上世纪五十年代“胜任力”的概念提出以来，有关胜任力及其模型的研究与应用越来越引起人们的关注。
Since the concept of competence was put forward in the 50s of the last century, the research and application of the model of international business competence have been increasingly focused.
国外研究历史、现状早在二十世纪五十年代初，国外的一些学者就开始了对该问题的探讨。
The overseas research history and status quoIn the early 1950's, some overseas scholars began to this question.
事实上，IBM最近一份研究指出“广告产业在未来五年的改变，将超越过去五十年的改变”。
In fact, a recent study from IBM asserts that, "the next 5 years will hold more change for the advertising industry than the previous 50 did".
从二十世纪五十年代至今，《嘹歌》的搜集整理以及伴随的研究已逾半个世纪。
The collection and sort of Liao songs as well as concomitant studies have begun since the early 1950s, which has lasted for more than half century.
虽然国内外对摆振现象的研究已有近五十年的历史，并发表了许多有价值的文章，但是摆振问题仍没有彻底解决。
Though the world boasts the 50-year's history of study on vehicle steering wheel shimmy, and many valuable articles have been published meanwhile, the problem of shimmy is still not solved thoroughly.
我国关于石刀的研究最早出现于上个世纪五十年代。
The our country research concerning stone knife at the earliest stage appear in 50's in last century.
五十年来，研究者提出了多种人工和自动化的机器翻译质量评价方法利用不同语言特征评价译文的质量。
Various manual and automatic machine translation evaluation methods have been proposed based on linguistic features of the translations.
陶宗仪对契丹文字的记载是从元代到二十世纪五十年代考古重大发现之前中国文字学界研究契丹文字的独家资料。
Tao'records of Khitan characters were the exclusive materials before the new Khitan characters were discovered in the fifties of the twentieth century. Tao's siddham!
二十世纪五十年代以来，双曲型守恒律方程数值计算方法的研究一直是计算数学中的一个重要研究方向。
Since 1950' s, the research of numerical method for hyperbolic conservation laws is one of key research directions in computational mathematics.
二十世纪五十年代以来，双曲型守恒律方程数值计算方法的研究一直是计算数学中的一个重要研究方向。
Since 1950' s, the research of numerical method for hyperbolic conservation laws is one of key research directions in computational mathematics.
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