二十一

Solid Oxide Fuel Cells were called green power sources in twenty-first century.

固体氧化物燃料电池被称为&二十一世纪的绿色能源&。

It will take you forward into the twenty-first century without having to check your tracks in a rear-view mirror.

它将会教会你不用看后视镜而直接驶入二十一世纪。

The guzheng is tuned to a pentatonic scale, the 16-string zheng is tuned to give three complete octaves, while the 21-string zheng has four complete octaves.

古筝是调整以五声音阶，16弦筝的调整，以使三个完整的八度，而二十一弦筝有四个完整的八度。

Both of these herbs are widely used by alternative medicine practitioners and nutritionists in the 21st century.

这两方面普遍采用替代药材医药及营养师的二十一世纪。

Books of rubbings from stone inscriptions: books of rubbings from stone inscriptions of the eras before the Yuan Dynasty, whole pieces of rubbings of the Ming Dynasty and rare books of rubbings, de luxe editions of first rubbings, books of rubbings of the Qing Dynasty or of the modern times that the originals are important and have already been lost, process copies of exquisite rubbings of the Ming and Qing dynasties, books of rubbings that have important prefaces and postscripts by famous persons of Qing Dynasty and before.

二十一、碑帖拓本元代以前的碑帖拓本；明代整张拓片和罕见的拓本；初拓精本；原物重要且已佚失，拓本流传极少的清代或近代拓本；明清时期精拓套帖；清代及清代以前有历代名家重要题跋的拓本。

Based on these modifications, we have reimplemented our OGtree as a new web server OGtree2.0 and have also evaluated its accuracy of genome tree reconstruction on a testing dataset consisting of 21 Proteobacteria genomes.

根据上述的改变，我们将OGtree改版为一个新的网路伺服器叫做OGtree2.0，并且利用二十一条蛋白细菌染色体去建构其演化树并用其结果来衡量OGtree2.0的正确性。

Any such thing was rendered impossible by the circumstances in which the early Christians were placed, for in the first century or so of the Church's existence the idea of living apart from the congregation of the faithful, or of forming within it associations to practise special renunciations in common was out of the question.

任何这样的事情是不可能的情况下，早期基督徒被安置，中二十一世纪或教会的存在的想法分开居住的众信徒，或形成协会内部实行特殊的放弃是共同的问题。

The adoption of the twenty-first century the world's advanced level of centrifuge technology to produce new glass wool insulation materials, centrifugal glass wool products series.

公司采用二十一世纪具有世界先进水平的离心法玻璃棉技术生产新型保温隔热材料，离心玻璃棉系列制品。

There appear many environmental problems such as the thinner ozone layer, air pollution and dried-up water resources.

在经济发展，科技进步和人丁兴旺的二十一世纪，伴随而至的是全球变暖臭氧层变薄，空气污染、水源枯竭等环境问题。

June 13, 2008, Beijing Bertelsmann 21st Century Book Chain Co., Ltd.("Beijing Bertelsmann") that will be July 31, closed all of its nationwide chain of 36 bookstores business.

2008年6月13日，北京贝塔斯曼二十一世纪图书连锁有限公司宣布，将于7月31日前，全部关闭其全国范围内的36家连锁书店业务。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷