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Since 1969 when the first computer network ARPA was established, the network has been in the world for nearly half a century, but it was in 1990s' that it really started to be part of the people's daily life, and till in late 1990s', it attracted the theorists' attentions.

从1969年全球第一个计算机网络ARPA网建立起，互联网已存在近半个世纪，但真正成为人们日常生活的一部分，是在20世纪90年代，且直到90年代中期以后才被理论界所关注。

The head of the catechetical school during this half-century was Didymus the Blind, an Athanasian in his doctrine of the Son, and rather clearer even than his patriarch in his doctrine of the Trinity, but in many other points carrying on the Origenistic tradition.

首长问答这期间学校半世纪Didymus是盲人，一个Athanasian在他的学说的儿子，而是明确的甚至比他的家长在他的理论，三位一体，但在许多其他问题进行了Origenistic传统。

The technique elements of the modern music existed in the piano accompany part of Chinese art songs in the first half of 20th century, such as modes-semitone system of Neo-Nationalism in Music, bicinium technique of Neo-Classicism, and free atonality of Expressionism.

内容提要：20世纪上半叶中国艺术歌曲的钢琴伴奏中存在现代音乐的技法因素——新民族乐派"调式半音体系"、新古典主义音乐"二部写作技法"、表现主义音乐"自由无调性"的某些技法特征。

The invention concerns a burner comprising a premix designed to produce a flammable air-fuel mixture, said burner including a vortex generator, wherein are provided two complementary burner shells forming a passage body, having each a first half-cone burner shell section (1) and delimiting together a turbulence chamber, widening in the axis in the form of a cone, as well as tangential air intake slots in the axial longitudinal direction of the cone.

描述了一种用于产生可点燃的燃料-空气混合物的预混燃烧器，该预混燃烧器具有涡流发生器，该涡流发生器设置了至少两个对穿流本体进行补充的燃烧器壳，所述燃烧器壳分别具有构造为分锥形状的第一燃烧器壳区段(1)并且共同限定着在轴向上按锥形方式扩展的涡流室并且限制着所述沿轴向的锥体纵向伸展方向相互相切的进气缝隙。

When using will inferior before nitric acid different fills in to be put in bazoo after the crumb in the handkerchief into fat medicine bottle inspiratory, half minutes can be successful.

使用时将亚硝酸异成脂药瓶塞在手帕中捏碎后放在鼻前吸入，半分钟即可奏效。

In the first half of 2008, the rapid increase in world oil and PP resin prices stimulated BOPP film demand in the 781,000 tonne European market as buyers stocked ahead of expected price rises.

在2008年上半年，在世界石油和聚丙烯树脂价格的迅速增加，刺激了波普在78.1万吨的经济基本面未来预期价格的上涨，欧洲市场的电影买家的需求。

Comparing with the old process, the new process makes the content of oxygen half remain, the lowest is 10.9ppm and the average content is 15ppm; the total content of oxide inclusion decreases 45%, the lowest is 16ppm and the average content is 17. 5ppm. The notch toughness value of wheel in the new technology is much increased than that in injecting CaSi powder, in wire-feed and in the conventional process, the notch toughness value at low temperature, such as at -40℃ and -60℃ increased over 40%.

工业性试验结果表明，采用本研究的工艺条件，不仅使车轮钢全面满足GB8601-88和GB8602-88标准中A级车轮的质量要求，而且也满足了铁道部对200km/h高速车轮提出的冶金质量要求，与原工艺相比，使钢中氧含量减少一半，最低为lO.9ppm，平均为15ppm：氧化物夹杂总量下降了45％，最低为16ppm，平均为17.5ppm，车轮的冲击韧性值得到了明显提高，其中-40℃和-60℃的低温冲击韧性值较喷粉、喂线及原工艺高40％以上。

In fact, not only was rhythmic complexity of this repertoire largely unmatched for five and a half centuries, with extreme syncopations, mensural trickery, and even examples of augenmusik(such as a chanson by Baude Cordier written out in manuscript in the shape of a heart ), but also its melodic material was quite complex as well, particularly in its interaction with the rhythmic structures.

而事实上，这些作品不仅仅有着大部分在550年内无人能及的节奏复杂程度（极端复杂的切分音和记谱），比如augenmusik（如由Baude Cordier通过非记谱手法自由创作的chanson）；并且他们的旋律素材也相当复杂，尤其是其在节奏组织中的配合尤为复杂。

In this paper, various synthetic methods of coenzyme Q10 appeared in about half a century were reviewed with emphasis on the semi-chemosynthetic methods using natural solanesol extracted from tobacco as starting material. The key factors and development direction of coenzyme Q10 chemosynthesis were illustrated in this paper as well.

笔者根据半个世纪以来有关辅酶Q10化学合成的各种文献报道，对辅酶Q10现有的各种化学合成路线及其工艺优劣进行了介绍和比较，重点介绍了从烟草中提取天然茄尼醇为原料的半化学合成辅酶Q10方法，并阐明了化学合成辅酶Q10的关键因素和发展方向。

In the late half of 20th century, the visual angle of Chinee studies in Japan probed to view China using a new light andchanged the old view that seeing China as a backward country lagging behind in the process of modernization.

20世纪后半叶，日本汉学研究的视角改变了以往把中国视为在现代化道路上落伍的后进国家的看法，转换了审视新中国的眼光。21世纪前半叶日本汉学理想的研究视角应当是：我们怎样在认识中国时，把欧洲的现代与社会主义加以相对化？

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。